Sweet Potato Casserole With Marshmallows Recipe
A classic Sweet Potato Casserole topped with a crunchy pecan streusel and gooey toasted mini marshmallows. This comforting side dish combines creamy mashed sweet potatoes with a rich, buttery topping perfect for holiday dinners or cozy family meals.
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 8 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
Sweet Potato Base
- 5 large sweet potatoes, peeled and cubed (about 8 cups)
- 4 large eggs
- 1/2 cup (1 stick) unsalted butter, melted
- 1 cup whole milk
- 1/2 cup (107 g) packed dark brown sugar
- 2 tsp pure vanilla extract
- 1 tsp kosher salt
Streusel Topping
- 1 cup (213 g) packed dark brown sugar
- 1/2 cup (60 g) all-purpose flour
- 4 tbsp (1/2 stick) unsalted butter, melted
- 1 cup coarsely chopped raw pecans
- 2 1/2 cups mini marshmallows
Instructions
- Prepare the Potatoes: Place peeled and cubed sweet potatoes in a large pot and cover with water by about 2 inches. Bring to a boil over high heat, then reduce to a medium-low simmer. Cook until potatoes are tender and can be easily pierced with a knife or fork, about 15 to 20 minutes.
- Drain and Mash: Drain the potatoes well and return them to the pot. Let them cool slightly to avoid scrambling eggs later. Mash the potatoes using a masher or fork, or use a potato ricer to achieve a smooth texture. Transfer the mashed potatoes to a large bowl if using a ricer.
- Mix the Base Ingredients: To the mashed potatoes, add eggs, melted butter, whole milk, 1/2 cup brown sugar, vanilla extract, and kosher salt. Mix thoroughly until well combined and smooth. Transfer this mixture to a 13×9 inch baking dish, spreading evenly.
- Make the Streusel Topping: In a medium bowl, combine 1 cup brown sugar, all-purpose flour, and melted butter. Use a rubber spatula or fork to mix until clumps form. Stir in chopped pecans evenly.
- Assemble the Casserole: Sprinkle the pecan streusel evenly over the mashed sweet potato base. Then evenly distribute the mini marshmallows over the streusel layer.
- Bake: Place the baking dish on a rack in the center of a preheated 350°F oven. Bake for approximately 25 minutes until the casserole is heated through and the marshmallows are golden brown and toasted on top.
Notes
- For smoother potatoes, use a potato ricer instead of mashing with a fork.
- Ensure the sweet potatoes are well drained to prevent a watery casserole.
- Keep an eye on the marshmallows during baking to avoid burning them; you can loosely tent with foil if they brown too quickly.
- For a nuttier flavor, toast pecans lightly before mixing into the streusel.
- Make ahead by preparing the mashed potatoes and streusel separately, then assemble and bake just before serving.