If you love classic marshmallow bars, this Peanut Butter Rice Krispie Treats is about to become your new obsession.
The combination of creamy peanut butter, gooey marshmallows, and crispy Rice Krispies cereal creates a no-bake treat that comes together in under 20 minutes flat.
No oven, no fuss, and absolutely no special skills required. These treats are sweet, chewy, slightly salty, and completely irresistible straight from the pan.
Whether you need a quick dessert for a party, a lunchbox treat for the kids, or just something indulgent to snack on, this recipe never lets you down.
You can even dress them up with a chocolate drizzle or a sprinkle of flaky sea salt for a little extra flair.
| Quick Recipe Summary | |
|---|---|
| Prep Time | 10 minutes |
| Cook Time | 5 minutes |
| Total Time | 15 minutes (plus 30 minutes cooling) |
| Servings | 16 bars |
| Difficulty Level | Easy |
For another easy no-bake crowd-pleaser, check out this classic Rice Krispie Treats Recipe that started it all.
Why You’ll Love This Peanut Butter Rice Krispie Treats
These bars are as simple as it gets, and that is exactly why everyone loves them.
You only need a handful of pantry staples, one pot, and a baking pan. No mixer, no oven, and no complicated technique.
The peanut butter adds a deep, nutty richness that takes the classic version up a notch.
It also helps the treats hold their shape without becoming rock hard, so every bite stays perfectly chewy.
These are ready to slice in about 45 minutes total, which makes them ideal when you need something fast for a last-minute gathering or bake sale.
Kids absolutely love them, and adults can not resist them either.
- No oven needed, perfect for warm weather baking
- Ready in under an hour from start to finish
- Uses only 5 simple ingredients
- Customizable with chocolate, nuts, or sprinkles
- Perfect for potlucks, lunchboxes, bake sales, and holiday trays
- Kid-friendly and easy enough for beginner cooks
Ingredients
You only need a handful of basic ingredients for these bars, and most of them are probably already sitting in your pantry right now.
Use full-fat, creamy peanut butter for the best texture. Natural peanut butter that separates can make the treats too oily or cause them to fall apart.
- 6 cups Rice Krispies cereal
- 4 tablespoons unsalted butter
- 1 bag (10 oz) mini marshmallows (about 5 cups), plus extra for topping if desired
- 1/2 cup creamy peanut butter
- 1 teaspoon pure vanilla extract
- 1/4 teaspoon fine sea salt
Optional add-ins:
- 1/2 cup chocolate chips (for drizzle or mix-in)
- Flaky sea salt for topping
Kitchen Equipment Needed
You do not need any special equipment for this recipe, which is part of what makes it so great.
A sturdy, large saucepan and a well-greased baking pan are the two most important items to have on hand.
- Large saucepan or heavy-bottomed pot
- 9×13 inch baking pan
- Silicone spatula or wooden spoon
- Measuring cups and spoons
- Parchment paper or nonstick cooking spray
- Bench scraper or flat spatula (for pressing into pan)
- Sharp knife for cutting bars
Recommended Products for This Recipe
These are a few of my personal go-to products that genuinely make a difference with this recipe.
1. Kraft Jet-Puffed Mini Marshmallows
Mini marshmallows melt much faster and more evenly than the large ones, which means less stirring and less chance of scorching your marshmallow mixture.
The Jet-Puffed brand consistently delivers a soft, fluffy melt every single time. I always keep a bag or two in my pantry for recipes just like this one.
2. Jif Creamy Peanut Butter
Jif is the classic choice for Rice Krispie treats because its smooth consistency blends seamlessly into the marshmallow mixture without clumping.
The slight sweetness and richness it adds to each bar is unmatched. If you want perfectly chewy, cohesive treats every time, this is the peanut butter to use.
3. USA Pan 9×13 Inch Nonstick Baking Pan
A high-quality baking pan ensures your treats cool evenly and release cleanly without sticking.
The USA Pan’s nonstick coating and sturdy construction means you can cut perfect squares without the bars crumbling or tearing.
It is also dishwasher-safe, which makes cleanup a breeze.
4. GIR Silicone Spatula
Stirring hot marshmallow mixture requires a spatula that can handle high heat without melting or staining.
The GIR silicone spatula is flexible enough to scrape every last bit of gooey goodness from the pot and firm enough to press the mixture evenly into your pan.
It is one of those kitchen tools you will reach for constantly.
Step-by-Step Instructions: How to Make Peanut Butter Rice Krispie Treats
Step 1: Prepare Your Pan
- Line your 9×13 inch baking pan with parchment paper, leaving some overhang on the sides so you can lift the bars out easily later.
- Alternatively, spray the pan generously with nonstick cooking spray.
- Set the prepared pan aside where it is easy to access quickly, because you will need to work fast once the marshmallow mixture is ready.
Step 2: Measure Out Your Ingredients
- Measure out 6 cups of Rice Krispies cereal into a very large mixing bowl and set it aside. The bowl needs to be large enough to stir everything together without it spilling over.
- Measure out your 1/2 cup of creamy peanut butter, 1 teaspoon of vanilla extract, and 1/4 teaspoon of salt and have them ready near the stove. Having everything measured and within arm’s reach before you start melting is the key to smooth, stress-free cooking.
Step 3: Melt the Butter
- Place your large saucepan or heavy-bottomed pot over medium-low heat.
- Add the 4 tablespoons of unsalted butter to the pot.
- Stir the butter gently as it melts to keep it from browning too quickly.
- You want the butter fully melted but not browned or bubbling aggressively. Low and slow is the key here.
Step 4: Add the Marshmallows
- Once the butter is completely melted, add the entire 10-ounce bag of mini marshmallows to the pot.
- Stir continuously with your silicone spatula, making sure to scrape the bottom and sides of the pot so nothing sticks or burns.
- Keep the heat at medium-low. High heat is the number one reason marshmallows get scorched and taste bitter.
- Continue stirring until the marshmallows are completely smooth and no lumps remain. This usually takes 3 to 5 minutes.
Step 5: Add the Peanut Butter, Vanilla, and Salt
- Remove the pot from the heat immediately once the marshmallows are melted.
- Add the 1/2 cup of creamy peanut butter to the marshmallow mixture.
- Stir vigorously until the peanut butter is fully incorporated and the mixture looks uniform, glossy, and smooth.
- Add the 1 teaspoon of vanilla extract and the 1/4 teaspoon of salt.
- Stir again until everything is well combined. The mixture should smell incredible at this point.
Step 6: Fold in the Rice Krispies Cereal
- Working quickly, pour the entire marshmallow-peanut butter mixture over the 6 cups of Rice Krispies cereal in your large bowl.
- Use your spatula to fold and stir the cereal into the mixture, coating every piece evenly.
- Work quickly but gently. Overmixing or pressing too hard can crush the cereal and make your treats dense instead of light and airy.
- Make sure there are no dry patches of cereal at the bottom of the bowl.
Step 7: Press into the Pan
- Transfer the mixture to your prepared 9×13 inch baking pan.
- Use a lightly buttered spatula, bench scraper, or the back of a buttered spoon to press the mixture firmly and evenly into the pan.
- You can also lightly butter your hands and use them to press the mixture flat.
- Do not press too hard or the treats will become dense and chewy rather than soft and light. Firm but gentle pressure is what you are going for.
- Make sure the surface is as even as possible so all bars are the same height.
Step 8: Cool and Cut
- Allow the treats to cool at room temperature for at least 30 minutes before cutting. Do not rush this step.
- If you want to speed things up, you can place the pan in the refrigerator for 15 to 20 minutes.
- Once cooled and set, use the parchment paper overhang to lift the entire slab out of the pan and onto a cutting board.
- Use a sharp knife to cut into 16 equal bars. Wiping the knife clean between cuts gives you cleaner edges.
- For extra-neat cuts, lightly coat your knife blade with nonstick spray or butter before slicing.
You might also enjoy: Fantasy Fudge Recipe
Tips for the Best Peanut Butter Rice Krispie Treats
A few simple tricks make the difference between average bars and absolutely perfect ones.
The biggest tip is to never use high heat when melting your marshmallows. Rushing this step leads to stiff, hard treats that are difficult to chew.
- Use fresh marshmallows. Old, stale marshmallows do not melt as smoothly and can leave your treats with a grainy texture.
- Keep the heat low. Medium-low is the sweet spot. Burnt marshmallows have a bitter, unpleasant taste that ruins the whole batch.
- Use creamy, commercial-style peanut butter. Natural peanut butter with oil separation can cause your bars to fall apart or feel greasy.
- Do not over-press. Press firmly but gently into the pan. Crushing the cereal makes dense, tough bars.
- Work quickly. The mixture starts to stiffen fast once off the heat, so have everything ready before you start melting.
- Butter your hands or tools. Lightly buttering your spatula or hands prevents the sticky mixture from sticking everywhere.
- Let them cool fully before cutting. Cutting too soon results in bars that crumble and fall apart.
- Add a drizzle of melted chocolate. A drizzle of melted dark or milk chocolate on top takes these to the next level. Let it set before cutting.
Read Also: Peanut Butter Blossoms Recipe
Serving Suggestions
These bars are delicious on their own, but there are so many fun ways to serve and enjoy them.
They make a gorgeous addition to any dessert table, especially when cut into neat squares and stacked on a platter.
- Serve alongside a scoop of vanilla ice cream for a simple but indulgent dessert
- Pack into lunchboxes or snack bags for an on-the-go treat
- Cut into small bite-sized pieces and serve on a dessert platter at parties
- Drizzle with melted milk or dark chocolate and sprinkle with crushed peanuts for a fancy finish
- Top with a smear of extra peanut butter and a few mini chocolate chips for a peanut butter cup-inspired version
- Pair with a glass of cold milk, hot coffee, or your favorite hot chocolate for the ultimate cozy snack
They also pair wonderfully with a warm mug from my Peanut Butter Hot Chocolate for a full-on peanut butter moment.
Variations of Peanut Butter Rice Krispie Treats
Once you master the basic recipe, there are so many fun ways to customize these bars.
These variations are a great way to change things up depending on the season or occasion.
- Chocolate Peanut Butter: Stir 1/2 cup of chocolate chips directly into the mixture along with the cereal for pockets of melted chocolate in every bite.
- Honey Roasted Peanut Butter: Swap the creamy peanut butter for honey roasted peanut butter and add 1/4 teaspoon of cinnamon for a warm, sweet twist.
- Almond Butter Version: Substitute almond butter for the peanut butter for a slightly lighter, nuttier flavor. Great for those who prefer almonds.
- Crunchy Peanut Butter: Use crunchy peanut butter instead of creamy for extra texture throughout each bar.
- Rainbow Sprinkle Bars: Fold in 1/4 cup of rainbow sprinkles just before pressing into the pan for a fun, colorful treat kids will love.
- Salted Chocolate Drizzle: Drizzle the cooled bars with melted dark chocolate and finish with a pinch of flaky sea salt for a sophisticated, sweet-salty version.
- Peanut Butter Cup Style: Press a layer of melted chocolate into the bottom of the pan, let it set, add the treat mixture on top, and finish with another chocolate layer for a peanut butter cup-style bar.
- S’mores Twist: Add 1/2 cup of mini chocolate chips and 1/2 cup of crushed graham crackers to the mixture for a s’mores-inspired version.
Another favorite: Chocolate Chip Cookies Recipe
Storage and Reheating
These treats store really well, which makes them ideal for making ahead.
Once fully cooled and cut, store the bars in an airtight container at room temperature for up to 3 days.
- Room temperature: Place in an airtight container with layers separated by parchment paper. Keeps well for 2 to 3 days.
- Refrigerator: Store in an airtight container for up to 1 week. Note that refrigeration can make the bars slightly firmer. Let them sit at room temperature for 10 to 15 minutes before serving for the best texture.
- Freezer: Wrap individual bars in plastic wrap, then place in a zip-top freezer bag. Freeze for up to 6 weeks. Thaw at room temperature for about 30 minutes before eating.
- To soften refrigerated bars: Microwave a single bar for 10 to 12 seconds to restore that fresh, gooey texture.
- Do not store uncovered. Exposure to air makes the bars stale and dry very quickly.
Read Also: Salted Caramel Brownies Recipe
Nutritional Facts
The following is an approximate nutritional breakdown per bar (based on 16 bars from one 9×13 pan):
| Nutrient | Per Bar | ||| | Calories | 185 | | Total Fat | 6g | | Saturated Fat | 2g | | Cholesterol | 8mg | | Sodium | 115mg | | Total Carbohydrates | 30g | | Dietary Fiber | 0.5g | | Sugars | 18g | | Protein | 3g |
Nutritional values are estimates and will vary based on the specific brands and products used.
Health Benefits of Key Ingredients
These treats are a fun indulgence, but a couple of the key ingredients do offer some genuine nutritional value.
Enjoying them in moderation means you can feel good about the occasional treat.
- Peanut butter is a good source of heart-healthy monounsaturated fats, and it also provides a decent amount of plant-based protein and fiber per serving. It contains key vitamins like niacin, magnesium, and vitamin E.
- Rice Krispies cereal is a fortified grain, meaning it provides added iron and several B vitamins including thiamine, riboflavin, niacin, and folic acid. It is also low in fat and relatively low in calories compared to many other cereals.
- Vanilla extract contains small amounts of antioxidants and has been studied for mild anti-inflammatory properties, though the amounts in a recipe like this are very small.
- Marshmallows are made from gelatin, which is a protein source that some research suggests may support joint and skin health.
- Butter provides fat-soluble vitamins A, D, E, and K2 when consumed in moderate amounts.
These bars are an occasional treat, not a health food, but the peanut butter and fortified cereal do add a touch of nutrition to every bite.
For more no-bake fun, you might enjoy my Hot Fudge Sundae Recipe as a pairing idea.
FAQs About Peanut Butter Rice Krispie Treats
1. Can I use natural peanut butter for this recipe?
Natural peanut butter can work, but it is not ideal for this recipe.
The oil separation in natural peanut butter can make the mixture greasy and may cause the bars to not hold together as well.
For best results, stick with a commercial creamy peanut butter like Jif or Skippy.
2. Why are my Rice Krispie treats too hard?
Hard treats are almost always the result of overcooking the marshmallows or using too high of a heat.
Melt your marshmallows on medium-low heat, stir constantly, and remove from the heat as soon as they are smooth.
Also, make sure not to over-press when putting the mixture into the pan.
3. Can I make these treats ahead of time?
Yes, absolutely. These bars store well at room temperature for up to 3 days in an airtight container.
You can also freeze them for up to 6 weeks. They are a great make-ahead option for parties, bake sales, or gifting.
4. How do I keep Rice Krispie treats from sticking to the pan?
Lining your pan with parchment paper is the easiest and most reliable method. You can also spray the pan generously with nonstick cooking spray.
Buttering the pan works too, but parchment gives you the cleanest release and makes cutting much easier.
5. Can I double this recipe?
Yes, you can easily double the recipe. Use a very large pot and have two 9×13 pans ready to go.
Work quickly when distributing the mixture between the two pans, as the mixture thickens fast once off the heat.
You can also use an 18×13 half sheet pan for one large slab if you prefer.
Read Also: Fantasy Fudge Recipe
Peanut Butter Rice Krispie Treats
Ingredients
- 6 cups Rice Krispies cereal about 162g
- 4 tablespoons unsalted butter 57g
- 10 oz mini marshmallows 1 bag, about 5 cups or 283g; plus extra for topping if desired
- 1/2 cup creamy peanut butter 128g; use commercial-style such as Jif or Skippy, not natural
- 1 teaspoon pure vanilla extract
- 1/4 teaspoon fine sea salt
- 1/2 cup chocolate chips optional; for drizzle or mix-in
- flaky sea salt optional; for topping
Equipment
- Large saucepan or heavy-bottomed pot
- 9×13 inch baking pan
- Silicone spatula or wooden spoon
- Measuring cups and spoons
- Parchment paper or nonstick cooking spray
- Bench scraper or flat spatula For pressing mixture into pan
- Sharp knife For cutting bars
Method
- Line a 9×13 inch baking pan with parchment paper, leaving overhang on the sides for easy removal. Alternatively, spray generously with nonstick cooking spray and set aside.
- Measure 6 cups of Rice Krispies cereal into a very large mixing bowl. Measure out the peanut butter, vanilla extract, and salt and have them ready near the stove before you begin melting.
- Place a large saucepan over medium-low heat and add the 4 tablespoons of unsalted butter. Stir gently as it melts, keeping it from browning or bubbling aggressively.
- Add the entire bag of mini marshmallows to the melted butter and stir continuously, scraping the bottom and sides of the pot. Continue over medium-low heat for 3 to 5 minutes until completely smooth with no lumps.
- Remove the pot from heat immediately and stir in the creamy peanut butter until fully incorporated and glossy. Add the vanilla extract and salt and stir until well combined.
- Pour the marshmallow-peanut butter mixture over the Rice Krispies cereal and fold together quickly, coating every piece evenly. Work gently to avoid crushing the cereal.
- Transfer the mixture to the prepared pan and press firmly but gently into an even layer using a lightly buttered spatula, bench scraper, or your buttered hands.
- Allow the treats to cool at room temperature for at least 30 minutes, then lift out using the parchment overhang and cut into 16 bars with a sharp knife, wiping the blade clean between cuts.
Nutrition
Notes
- Always melt marshmallows on medium-low heat and stir constantly — high heat causes scorching and results in hard, bitter treats.
- Use fresh marshmallows. Stale marshmallows do not melt as smoothly and can leave a grainy texture in the finished bars.
- Use commercial creamy peanut butter (Jif or Skippy). Natural peanut butter with oil separation can cause bars to fall apart or feel greasy.
- Do not over-press the mixture into the pan — firm but gentle pressure keeps the bars light and chewy rather than dense and tough.
- Work quickly after removing the pot from heat, as the mixture stiffens fast. Have everything measured and ready before you start melting.
- Lightly butter your spatula or hands before pressing to prevent sticking.
- Let bars cool fully before cutting. Cutting too soon causes them to crumble and fall apart.
- For a chocolate drizzle, melt milk or dark chocolate chips and drizzle over cooled bars. Let set completely before cutting.
- Store at room temperature in an airtight container for up to 3 days, in the refrigerator for up to 1 week, or freeze individually wrapped bars for up to 6 weeks.
- To restore gooey texture on refrigerated bars, microwave a single bar for 10 to 12 seconds before serving.
Private Notes
Tried this recipe?
Let us know how it was!Conclusion
Peanut Butter Rice Krispie Treats are proof that the best desserts do not need to be complicated.
Five simple ingredients, one pot, and about 45 minutes is all it takes to make a batch of bars that will disappear faster than you expect.
The peanut butter adds just enough savory depth to balance the sweetness of the marshmallows, making these impossible to eat just one of.
If you have kids, they will love helping press the mixture into the pan. If you are making these for a party or bake sale, plan on making a double batch.
Give this recipe a try and let me know how it goes in the comments below.
Did you add chocolate, sprinkles, or a salty finish? Share your version here with me. I would love to see what you create.
Recommended:
- Rice Krispie Treats Recipe
- Chocolate Chip Cookies Recipe
- Peanut Butter Blossoms Recipe
- Salted Caramel Brownies Recipe
- Fantasy Fudge Recipe
