Savory Sweet Potato Casserole
This savory sweet potato casserole transforms the traditional holiday side dish into a sophisticated blend of creamy sweet potatoes, nutty Gruyere cheese, fresh herbs, and a golden panko topping. It's the perfect balance of comfort and elegance for any dinner table.
Equipment
- Large pot for boiling sweet potatoes
- Colander
- Potato masher or fork
- Large mixing bowl
- 9x13-inch baking dish or 3-quart casserole dish
- Small bowl for breadcrumb topping
- Wooden spoon or spatula
- Measuring cups and spoons
- Chef's knife and cutting board
Ingredients
- 4 lbs sweet potatoes about 1.8 kg, peeled and cubed
- 1/2 cup butter 115g, melted, unsalted
- 1/2 cup heavy cream 120ml
- 1 cup Gruyere cheese 115g, shredded
- 2 cloves garlic minced
- 2 teaspoons fresh thyme chopped, or 1 teaspoon dried
- 1 teaspoon fresh rosemary chopped, or 1/2 teaspoon dried
- salt and black pepper to taste
For the Topping
- 1 cup panko breadcrumbs 60g
- 1/4 cup Parmesan cheese 25g, grated
- 3 tablespoons butter 45g, melted
Instructions
- Peel and cube sweet potatoes into 1-inch pieces. Boil in salted water for 15-20 minutes until fork-tender, then drain thoroughly and let steam for 2-3 minutes.
- Transfer hot sweet potatoes to a large bowl and mash until mostly smooth with some small chunks remaining. Stir in melted butter and heavy cream until creamy.
- Add minced garlic, thyme, rosemary, and shredded Gruyere to the mashed potatoes. Season generously with salt and pepper, then mix until well combined.
- Preheat oven to 375°F (190°C). Grease a 9x13 inch baking dish and spread the sweet potato mixture evenly, smoothing the top surface.
- In a small bowl, combine panko breadcrumbs, Parmesan cheese, and melted butter. Toss until breadcrumbs are evenly coated.
- Sprinkle breadcrumb topping evenly over the casserole and gently press down. Bake uncovered for 25-30 minutes until golden brown and bubbling at edges.
- Remove from oven and let rest for 5-10 minutes before serving to allow the filling to set up.
Notes
- Drain sweet potatoes thoroughly after boiling to prevent a watery casserole. Let them sit in the colander for a few minutes to release excess steam.
- Use freshly grated Gruyere cheese for best melting results. Pre-shredded cheese contains anti-caking agents that prevent smooth melting.
- Fresh herbs provide much better flavor than dried. If using dried, reduce the amount by half since dried herbs are more concentrated.
- Make-ahead tip: Assemble the casserole up to 24 hours in advance without the topping. Add fresh breadcrumb topping right before baking.
- To reheat leftovers with crispy topping, broil for 2-3 minutes after warming in the oven.
- Storage: Refrigerate covered for up to 4 days or freeze for up to 3 months. Thaw overnight before reheating.
- Substitutions: Swiss cheese works well in place of Gruyere. Sharp white cheddar also provides great flavor.
- For a lighter version, use milk instead of heavy cream and reduce butter by half.
- Add crumbled bacon or caramelized onions to the filling for extra flavor variations.
- If topping browns too quickly, tent loosely with foil and continue baking until casserole is heated through.
Nutrition
Serving: 1ServingCalories: 285kcalCarbohydrates: 30gProtein: 7gFat: 16gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 45mgSodium: 290mgPotassium: 475mgFiber: 4gSugar: 6gVitamin A: 340IUVitamin C: 30mgCalcium: 15mgIron: 8mg
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