Description
Creamy mashed sweet potatoes baked to perfection with a buttery brown sugar streusel topping. This cozy side dish is perfect for holidays, potlucks, or Sunday dinners.
Ingredients
For the Sweet Potato Filling:
4 large sweet potatoes (about 9 cups), baked until tender
½ cup unsalted butter, melted
¾ cup brown sugar (or ½ cup if using maple syrup)
2 large eggs, room temperature
½ teaspoon cinnamon
1 teaspoon vanilla extract
½ teaspoon salt
½ cup half-and-half (or heavy cream for richer texture)
For the Streusel Topping:
4 tablespoons unsalted butter, softened
⅓ cup brown sugar
¼ cup all-purpose flour
½ teaspoon salt
Optional: ½ cup chopped pecans or walnuts
Instructions
Bake Sweet Potatoes:
Preheat oven to 400°F (204°C). Pierce sweet potatoes with a fork and bake on a baking sheet for 50–60 minutes until very tender.
Mash Filling:
Cut baked potatoes in half, scoop out the flesh, and mash in a large mixing bowl. Add melted butter, brown sugar, eggs, cinnamon, vanilla, salt, and half-and-half. Whip until smooth and creamy.
Assemble Casserole:
Spread sweet potato mixture into a greased 9×13-inch baking dish.
Make Streusel:
In a bowl, mix softened butter, brown sugar, flour, and salt until crumbly. Stir in chopped nuts if using.
Top and Bake:
Sprinkle streusel over the casserole. Bake at 350°F (176°C) for 20–25 minutes, or until the top is golden and the filling is heated through. Cover loosely with foil if topping browns too fast.
Serve:
Serve warm. Store leftovers in the fridge or freeze for later.
Notes
Prep Ahead: Assemble unbaked casserole up to 24 hours in advance and refrigerate. Bake just before serving.
Topping Swap: Use mini marshmallows instead of—or in addition to—the streusel. Add them in the last 10 minutes of baking.
Dairy-Free Option: Use plant-based butter and coconut or almond milk.
Storage: Refrigerate leftovers for up to 4 days. Freeze (without topping) for up to 2 months.
Reheat: Cover with foil and reheat at 325°F for 15–20 minutes until warmed through.
Texture Tip: Use a hand mixer for ultra-smooth sweet potatoes.
- Prep Time: 35 minutes
- Cook Time: 25 minutes
- Category: Side Dish, Holiday Recipes
- Method: Baking
- Cuisine: American
