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–+ servings
Melany

Sweet Potato Casserole with Marshmallows is Delicious!

This sweet potato casserole is a cozy holiday favorite made with whipped roasted sweet potatoes, warm cinnamon, and a buttery brown sugar streusel topping. Creamy, rich, and perfectly sweet, it’s the ultimate comforting side dish for Thanksgiving or any family gathering.
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Prep Time 1 hour
Cook Time 25 minutes
Total Time 1 hour 25 minutes
Servings: 10 servings
Course: Side Dish
Cuisine: American
Ingredients Method Notes

Ingredients
  

  • For the Sweet Potato Base3 lbs sweet potatoes about 5–6 medium6 tablespoons melted butter½ cup sugar (or substitute with brown sugar)2 large eggs2 teaspoons vanilla extract1 teaspoon cinnamon1 teaspoon salt (reduce to ½ tsp if using salted butter)¼ cup half-n-half (or use heavy cream or whole milk)
  •  
  • For the Brown Sugar Streusel Topping3 tablespoons salted butter softened1 cup brown sugar⅓ cup all-purpose flour

Method
 

  1. Roast the Sweet PotatoesPreheat the oven to 400°F. Use a fork to pierce the sweet potatoes and place them on a baking sheet. Bake for 50 to 60 minutes or until completely soft. Allow them to cool slightly, then cut open and scoop out the flesh.
  2. Make the Sweet Potato MixtureIn a large mixing bowl, add the scooped sweet potato flesh. Mix in melted butter, sugar, eggs, vanilla, cinnamon, salt, and half-n-half. Use a mixer or whisk to blend until smooth and creamy.
  3. Prepare the Casserole DishSpread the sweet potato mixture into a 9x13-inch baking dish, smoothing out the top.
  4. Make the Streusel ToppingIn a small bowl, combine the softened butter, brown sugar, and flour. Mix with a fork or your hands until crumbly.
  5. Add the Topping and BakeSprinkle the streusel topping evenly over the sweet potato mixture. Bake at 350°F for 20 to 25 minutes or until the casserole is heated through and the topping is golden brown.
  6. Optional ToppingsFor extra flavor and texture, add mini marshmallows or chopped pecans on top of the streusel before baking.

Notes

  • You can prep the sweet potato mixture and streusel a day in advance—store them separately and assemble just before baking.
  • Brown sugar gives a deeper molasses flavor; feel free to swap in place of white sugar for the base.
  • Half-n-half adds creaminess, but you can also use evaporated milk or coconut milk for variation.

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