If you love a dessert that looks impressive but comes together without a ton of effort, this cake mix rum cake is exactly what you need.
It’s rich, buttery, and soaked in a glossy rum glaze that seeps all the way down into every layer of the cake.
The kind of cake people ask you to bring to every holiday gathering from November through January.
This recipe takes the classic Bacardi rum cake formula and keeps it simple on purpose.
A box of yellow cake mix, instant vanilla pudding, eggs, oil, and good dark rum. That’s basically it.
No fancy techniques, no complicated assembly. Just one beautiful bundt cake with a texture so moist it practically melts.
If you’ve ever had a rum cake from a Caribbean bakery or spotted those iconic tins at the airport duty-free shop, you already know what this cake is supposed to taste like.
This version nails that same buttery, boozy depth at home, and probably for a fraction of the price.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 15 minutes |
| Cook Time | 55 minutes |
| Total Time | 1 hour 10 minutes |
| Servings | 12 slices |
| Difficulty Level | Easy |
If you’re a fan of easy desserts that start with a box mix, you’ll also love this Peach Cobbler with Cake Mix for a fruity, crowd-pleasing option.
Why You’ll Love This Cake Mix Rum Cake
This cake is the kind of recipe that earns you a reputation as a great baker, and nobody has to know how easy it actually was.
The rum glaze is the real star here. It gets poured over the hot cake while it’s still in the pan, giving it time to soak all the way through before you even flip it out.
The texture is unbelievably moist. Between the pudding mix and the oil, this cake stays soft and tender for days, which also makes it perfect for making ahead.
It works for basically any occasion. Holidays, potlucks, birthday dinners, or just a Tuesday when you want something special.
Here’s what makes this recipe a consistent winner:
- Made with pantry staples. Yellow cake mix and instant pudding are easy to keep on hand.
- No mixer required. A whisk and a bowl are all you need.
- Stays moist for days. The glaze acts as a preservative, keeping the cake fresh longer than most.
- Deeply flavorful. Dark rum adds a warmth and complexity you can’t fake with extract alone.
- Crowd-pleasing. It never lasts long at a gathering.
- Scalable. Double the recipe and bake two cakes, freeze one for later.
Read Also: Harvey Wallbanger Cake Recipe
Ingredients
The ingredient list for this rum cake is short and sweet. You’ll want to use a good quality dark rum here, since it’s the main flavor driver. Cheap rum will absolutely affect the final taste.
Here’s everything you’ll need:
For the Cake:
- 1 cup chopped pecans or walnuts (optional, for the bottom of the pan)
- 1 box (15.25 oz) yellow cake mix
- 1 box (3.4 oz) instant vanilla pudding mix
- 4 large eggs, room temperature
- 1/2 cup cold water
- 1/2 cup vegetable oil
- 1/2 cup dark rum (such as Bacardi Dark or Myers’s)
For the Rum Glaze:
- 1/2 cup (1 stick / 113g) unsalted butter
- 1/4 cup water
- 1 cup granulated sugar
- 1/2 cup dark rum
Another crowd-pleasing dessert worth bookmarking: Cannoli Poke Cake Recipe
Kitchen Equipment Needed
You don’t need anything fancy here. Most of what you need is already in the average kitchen.
The most important piece is a good quality bundt pan, since this cake’s signature shape comes entirely from the pan.
Here’s what to gather before you start:
- 12-cup bundt pan
- Large mixing bowl
- Whisk
- Rubber spatula
- Small saucepan (for the glaze)
- Wooden spoon or silicone spatula (for stirring glaze)
- Measuring cups and spoons
- Cooling rack
- Serving plate or cake stand
- Pastry brush (optional, for glazing the pan)
Recommended Products for This Recipe
These are the products I personally reach for whenever I make this cake. Each one makes a noticeable difference in the final result.
1. Nordic Ware Platinum Collection Bundt Pan
This is the gold standard for bundt pans. The heavy-gauge cast aluminum conducts heat evenly, so you get a perfectly baked cake with no raw center and no burnt edges.
The non-stick coating also releases cleanly every single time, which matters a lot with a delicate rum cake.
2. Bacardi Superior Dark Rum
Using a quality dark rum makes a real difference in the depth of flavor.
Bacardi Dark is smooth, slightly sweet, and available in most grocery and liquor stores. It hits exactly the right note in both the batter and the glaze.
3. OXO Good Grips 3-Piece Mixing Bowl Set
A good set of mixing bowls makes the prep process seamless.
The OXO set has non-slip bases, easy pour spouts, and wide rims that make whisking the batter effortless.
4. OXO Good Grips Silicone Pastry Brush
Using a pastry brush to coat your bundt pan with butter before adding the nuts and batter ensures the cake releases cleanly and evenly.
A cheap foam brush leaves streaks; a silicone brush gets into every curve.
Step-by-Step Instructions: How to Make Cake Mix Rum Cake
1. Preheat the Oven and Prepare the Pan
- Preheat your oven to 325°F (163°C). This lower temperature helps the dense, moist batter bake through evenly without over-browning the outside.
- Generously grease every surface of your 12-cup bundt pan with softened butter or non-stick baking spray. Make sure you get into all the ridges and the center tube. Any dry spot will cause the cake to stick.
- If using nuts, scatter your 1 cup of chopped pecans or walnuts evenly across the bottom of the greased bundt pan. The nuts will form a crunchy, caramelized layer on top of the cake once it’s flipped out.
2. Mix the Cake Batter
- In a large mixing bowl, combine the 1 box of yellow cake mix and the 1 box of instant vanilla pudding mix. Give them a quick whisk together so they’re evenly distributed before adding the wet ingredients.
- Add the 4 eggs directly into the dry mixture. Use room temperature eggs for the best incorporation.
- Pour in the 1/2 cup of cold water, 1/2 cup of vegetable oil, and 1/2 cup of dark rum.
- Whisk everything together for about 2 minutes until the batter is smooth and there are no lumps remaining. The batter will be thick but pourable. Do not use an electric mixer on high speed, as this can overdevelop the gluten and make the cake tough. A hand whisk or mixer on low to medium speed is all you need.
3. Fill the Pan and Bake
- Pour the batter slowly and evenly over the nuts in the prepared bundt pan. Use a rubber spatula to scrape out every last bit of batter from the bowl.
- Smooth the top of the batter gently with the spatula so it’s level. This helps the cake bake evenly.
- Tap the pan lightly on the counter two or three times to release any air bubbles trapped in the batter.
- Place the pan on the center rack of your preheated oven. Bake for 50 to 60 minutes, or until a toothpick inserted into the thickest part of the cake comes out clean, or with just a few moist crumbs. Do not open the oven door during the first 45 minutes, as this can cause the cake to sink in the middle.
4. Make the Rum Glaze
- About 10 minutes before the cake is done baking, start preparing the glaze so it’s ready to use as soon as the cake comes out.
- In a small saucepan over medium heat, melt the 1/2 cup of unsalted butter completely.
- Add the 1/4 cup of water and 1 cup of granulated sugar to the melted butter. Stir continuously to combine.
- Bring the mixture to a boil, then reduce the heat to medium-low. Let it cook for 4 to 5 minutes, stirring occasionally, until the sugar is fully dissolved and the glaze begins to thicken slightly. You’ll notice it go from cloudy to a clearer, syrupy consistency.
- Remove the saucepan from the heat. Carefully stir in the 1/2 cup of dark rum. The mixture may bubble up when you add the rum, so stand back slightly. Stir gently until fully combined.
5. Soak the Cake with Glaze
- As soon as the cake comes out of the oven, immediately poke holes all over the surface of the cake using a wooden skewer, long toothpick, or fork. Make the holes deep, going about 2/3 of the way down into the cake. Space them about 1 inch apart across the entire surface. This is critical because it creates channels for the glaze to travel deep into the cake.
- While the cake is still in the pan, slowly pour approximately 3/4 of the warm rum glaze evenly over the surface, letting it soak into all the holes. Go slowly and move in a circular motion around the entire cake so the glaze distributes evenly. Let the cake sit in the pan for 10 to 15 minutes to absorb the glaze fully.
6. Flip the Cake and Finish Glazing
- After the soaking time, place your serving plate or cake stand upside down over the top of the bundt pan. In one confident, smooth motion, flip the pan and plate together so the cake releases onto the plate with the nut layer now on top.
- If the cake doesn’t release immediately, gently tap the bottom and sides of the pan. Avoid shaking it aggressively, which can break the cake. If needed, run a thin flexible spatula carefully around the outer and inner edges before flipping again.
- Once the cake is on the plate, slowly pour the remaining rum glaze over the top and sides of the cake, letting it drip down the ridges and sides. Use a pastry brush to spread it evenly if you’d like a more polished look.
- Allow the cake to cool completely, at least 30 to 45 minutes, before slicing. The glaze will set slightly as it cools, giving the exterior of the cake a beautiful sheen.
Tips for The Best Cake Mix Rum Cake
A few small details make the difference between a good rum cake and a truly outstanding one. Keep these in mind before you start.
Here are the most important tips for success:
- Use dark rum, not light. Dark rum has a deeper, more complex flavor that comes through in the finished cake. Light rum works but produces a noticeably milder result.
- Don’t skip the pudding mix. The instant pudding is what gives this cake its signature dense, moist texture. It’s not just for flavor.
- Grease the pan thoroughly. This cannot be overstated. Use softened butter and a pastry brush, or spray generously with non-stick baking spray. Get into every groove.
- Poke deep holes while the cake is hot. The glaze soaks into a hot cake much better than a cooled one. The heat helps pull the glaze in.
- Pour the glaze slowly. Don’t dump it all on at once. A slow pour gives the cake time to absorb it.
- Let it rest before slicing. The cake needs time for the glaze to set and redistribute. Cutting too early makes a mess.
- Make it a day ahead. This cake actually gets better overnight as the rum flavor deepens and the texture becomes even more moist.
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Serving Suggestions
Rum cake is a dessert that holds its own completely on its own, but a few thoughtful pairings can make it feel even more special.
Serve it on a cake stand with a light dusting of powdered sugar for a polished presentation at the holidays, or dress it up with a dollop of freshly whipped cream on the side.
A scoop of vanilla ice cream alongside a warm slice is an unbeatable combination.
Here are some great ways to serve and enjoy it:
- Pair with a glass of cold Eggnog for a classic holiday dessert pairing
- Serve with fresh sliced strawberries and a drizzle of chocolate sauce
- Top with a spoonful of whipped cream or creme fraiche and a sprinkle of toasted pecans
- Pair alongside a cup of hot coffee or espresso to balance the sweetness
- Slice thin and serve as part of a larger holiday dessert platter
- Add a scoop of butter pecan ice cream for an indulgent, nutty pairing
Variations of Cake Mix Rum Cake
The classic version is hard to beat, but there are several easy ways to customize this recipe based on what you have or what flavors you love.
Try one of these popular variations:
- Coconut Rum Cake. Substitute coconut rum for the dark rum and add 1/2 cup shredded coconut to the batter. Garnish with toasted coconut flakes after glazing.
- Chocolate Rum Cake. Use a chocolate cake mix instead of yellow, and substitute chocolate pudding for the vanilla pudding. The result is a dense, fudgy chocolate rum cake.
- Spiced Rum Cake. Replace dark rum with spiced rum, such as Captain Morgan, for a warmer, more aromatic flavor profile with notes of cinnamon and vanilla.
- Lemon Rum Cake. Use a lemon cake mix and lemon pudding mix, then add 2 tablespoons of fresh lemon zest to the batter. The citrus and rum combination is surprisingly bright and refreshing.
- Mini Rum Cakes. Divide the batter into a greased mini bundt pan or muffin tin. Reduce the baking time to 20 to 25 minutes. Perfect for gifting.
- Rum Raisin Cake. Soak 1/2 cup raisins in 1/4 cup rum for 30 minutes before folding them into the batter. The plumped raisins add bursts of boozy sweetness throughout.
Read Also: Amish Apple Cake Recipe
Storage and Reheating
One of the best things about rum cake is how well it keeps. The sugar and rum glaze actually help preserve the moisture, so this cake stays delicious for much longer than a standard baked cake.
Here’s how to store and reheat it properly:
- Room temperature: Wrap the cake tightly in plastic wrap or store it in an airtight container at room temperature for up to 5 days. The flavor continues to deepen as it sits.
- Refrigerator: Refrigerate for up to 10 days, tightly wrapped. Allow slices to come to room temperature before serving for the best texture.
- Freezer: Wrap individual slices or the whole cake tightly in plastic wrap, then in aluminum foil. Freeze for up to 3 months. Thaw overnight in the refrigerator.
- Reheating: To gently warm a slice, microwave it for 15 to 20 seconds. This softens the glaze slightly and brings out the rum aroma. Do not reheat at high temperatures, as this can dry the cake out.
Another make-ahead dessert worth trying: Lemon Pound Cake
Nutritional Facts
The following is an estimate per slice, based on the recipe divided into 12 servings. Values will vary depending on specific brands used and whether nuts are included.
| Nutrient | Per Serving (1 slice) | ||| | Calories | 420 kcal | | Total Fat | 20g | | Saturated Fat | 6g | | Cholesterol | 75mg | | Sodium | 330mg | | Total Carbohydrates | 52g | | Sugars | 38g | | Protein | 4g |
Nutritional values are estimates only. For precise nutritional information, calculate using your specific brands and ingredients.
Health Benefits of Key Ingredients
This is a dessert, so we’re not calling it a health food. That said, a few of the key ingredients do bring some genuine nutritional value to the table.
Here’s a quick look at the benefits of some ingredients in this recipe:
- Eggs are an excellent source of high-quality protein, vitamin D, and choline, which supports brain health. They also add to the moist, rich texture of the cake.
- Pecans (if used) are packed with heart-healthy monounsaturated fats, manganese, and antioxidants. They add a satisfying crunch and a toasty, buttery flavor.
- Rum, in moderate amounts, has been associated with lower cardiovascular risk in some studies, and its warming compounds have long been used in traditional cooking and folk medicine.
- Vegetable oil contributes unsaturated fats to the recipe, which are better for heart health than saturated fats like butter in high quantities.
- Eggs also provide riboflavin (vitamin B2), which supports cellular energy production.
FAQs About Cake Mix Rum Cake
1. Can I make rum cake without alcohol?
You can substitute the rum with rum extract mixed with apple juice or pineapple juice.
Use 1 tablespoon of rum extract combined with enough juice to make up the 1/2 cup measurement in the batter.
For the glaze, replace the rum with the same juice mixture and 1 tablespoon extract. The flavor won’t be identical, but it will be a delicious, alcohol-free version.
2. What type of rum is best for rum cake?
Dark rum is the traditional choice and delivers the richest, deepest flavor.
Bacardi Dark, Myers’s Dark, and Mount Gay Eclipse are all excellent options. Spiced rum also works well and adds a warm, aromatic twist.
Avoid light or white rum, as the flavor is too mild to come through in the finished cake.
3. Does the alcohol bake out of rum cake?
Some of the alcohol does evaporate during baking, but since rum is also added to the glaze after the cake comes out of the oven, a meaningful amount remains in the finished cake.
This is not a child-friendly or alcohol-free dessert by default. If you need to serve it to people who avoid alcohol, use the non-alcoholic substitution described above.
4. Why is my rum cake dry?
The most common causes of a dry rum cake are overbaking and not poking enough holes for the glaze to absorb.
Make sure to start checking doneness at the 50-minute mark and poke deep, generous holes before pouring the glaze.
Applying the glaze while the cake is still hot is also essential for maximum absorption.
5. Can I make rum cake ahead of time?
Rum cake is one of the best make-ahead desserts you can bake.
It actually tastes better after resting overnight, as the glaze has more time to soak into the crumb and the rum flavor mellows and deepens throughout.
You can make it up to 2 days ahead and store it at room temperature, tightly wrapped.
Cake Mix Rum Cake
Ingredients
- 1 cup chopped pecans or walnuts about 100g; optional, for the bottom of the pan
- 1 box yellow cake mix 15.25 oz (432g)
- 1 box instant vanilla pudding mix 3.4 oz (96g)
- 4 large eggs room temperature
- 1/2 cup cold water 120ml
- 1/2 cup vegetable oil 120ml
- 1/2 cup dark rum 120ml; such as Bacardi Dark or Myers’s
- 1/2 cup unsalted butter 1 stick / 113g
- 1/4 cup water 60ml
- 1 cup granulated sugar 200g
- 1/2 cup dark rum 120ml
Equipment
- 12-cup Bundt pan Essential for the classic rum cake shape
- Large mixing bowl
- Whisk
- Rubber spatula
- Small saucepan For making the rum glaze
- Wooden spoon or silicone spatula For stirring the glaze
- Measuring cups and spoons
- Wire cooling rack
- Serving plate or cake stand
- Pastry brush (optional) For glazing the pan and spreading the glaze
- Wooden skewer or fork For poking holes in the cake before glazing
Method
- Preheat your oven to 325°F (163°C). Generously grease every surface of a 12-cup bundt pan with softened butter or non-stick baking spray, making sure to coat all ridges and the center tube.
- If using nuts, scatter 1 cup of chopped pecans or walnuts evenly across the bottom of the greased bundt pan. They will form a crunchy, caramelized layer on top of the cake once flipped.
- In a large bowl, whisk together the yellow cake mix and instant vanilla pudding mix, then add the eggs, cold water, vegetable oil, and dark rum. Whisk for about 2 minutes until the batter is smooth and lump-free.
- Pour the batter over the nuts in the prepared pan, smooth the top with a spatula, and tap the pan lightly on the counter to release air bubbles. Bake on the center rack for 50 to 60 minutes, or until a toothpick inserted in the thickest part comes out clean.
- About 10 minutes before the cake is done, melt the butter in a small saucepan over medium heat, then stir in the water and sugar. Bring to a boil, cook for 4 to 5 minutes until the sugar dissolves and the glaze thickens slightly, then remove from heat and stir in the dark rum.
- As soon as the cake comes out of the oven, poke deep holes all over the surface using a skewer or fork, spacing them about 1 inch apart. Slowly pour about three-quarters of the warm rum glaze over the cake while it is still in the pan, and let it soak for 10 to 15 minutes.
- Place a serving plate over the bundt pan and flip the cake out in one smooth motion. Slowly pour the remaining rum glaze over the top and sides of the cake, then allow it to cool completely for at least 30 to 45 minutes before slicing.
Nutrition
Notes
- Use dark rum for the best flavor. Dark rum (such as Bacardi Dark or Myers’s) delivers a richer, more complex taste than light or white rum.
- Do not skip the instant pudding mix. It is what gives the cake its signature dense, moist texture and keeps it soft for days.
- Grease the bundt pan very thoroughly. Use softened butter and a pastry brush to coat every ridge and curve, or use a generous layer of non-stick baking spray. Any dry spot will cause sticking.
- Poke holes while the cake is still hot. The heat helps draw the glaze deep into the crumb for maximum moisture and flavor.
- Pour the glaze slowly in a circular motion. Taking your time ensures even distribution and full absorption rather than runoff.
- Make it a day ahead. This cake improves overnight as the rum flavor deepens and the glaze fully permeates the crumb.
- For an alcohol-free version, replace the rum with 1 tablespoon rum extract combined with apple juice or pineapple juice to reach the full 1/2 cup measurement in both the batter and glaze.
- Store at room temperature, tightly wrapped, for up to 5 days. Refrigerate for up to 10 days, or freeze for up to 3 months.
- Variation: Substitute coconut rum and add 1/2 cup shredded coconut to the batter for a tropical twist. Top with toasted coconut flakes after glazing.
- Do not open the oven during the first 45 minutes of baking, as this can cause the center of the cake to sink.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
This cake mix rum cake delivers everything you want in a holiday dessert, rich flavor, a gorgeous presentation, and a recipe that doesn’t stress you out.
The combination of a tender, pudding-enriched crumb and that buttery rum glaze makes every single slice taste like it took all day, even though the whole thing comes together in just over an hour.
Give it a try for your next celebration, or honestly any occasion that calls for something a little special. Once you make it once, it tends to become a permanent part of your recipe rotation.
If you try this recipe, drop a comment below and let me know how it turned out. I’d love to hear if you tried any of the variations, and photos are always welcome.
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