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Fluffy Sweet Potato Soufflé Recipe

4.6 from 131 reviews

This Fluffy Sweet Potato Soufflé is a delightful, sweet casserole featuring smooth mashed sweet potatoes blended with rich eggs, butter, and warming vanilla, topped with a crunchy pecan streusel. Baked to golden perfection, it’s an ideal side dish for holiday meals or cozy family dinners.

Ingredients

Scale

Soufflé

  • 2 large eggs
  • 1/2 tsp salt
  • 1/4 cup light brown sugar
  • 1/4 cup white sugar
  • 1/2 cup half and half
  • 4 tbsp melted unsalted butter
  • 1 1/2 tsp vanilla extract
  • 4 medium sweet potatoes (about 10 cups peeled and chopped)

Topping

  • 1 cup light brown sugar
  • 1/2 cup all-purpose flour
  • 1/4 tsp salt
  • 1/2 tsp ground cinnamon
  • 4 tbsp softened unsalted butter (preferably Kerrygold)
  • 1/2 cup chopped pecans

Instructions

  1. Preheat and Prepare Sweet Potatoes: Preheat your oven to 350°F (175°C). Lightly grease an 8×8 inch baking dish and set it aside. Peel and chop sweet potatoes to yield about 10 cups. Place them in a large pot, cover with water, and boil for approximately 7 minutes until tender. Drain well and return to pot.
  2. Mash Sweet Potatoes: Mash the boiled sweet potatoes until smooth, about 4 cups. Ensure no large lumps remain for the best soufflé texture.
  3. Make the Soufflé Mixture: In a bowl, whisk together eggs, white sugar, light brown sugar, half and half, melted butter, vanilla extract, and salt until well combined. Stir or blend this egg mixture into the mashed sweet potatoes using a hand mixer or food processor to create a smooth, uniform batter.
  4. Prepare the Topping: In a separate bowl, combine light brown sugar, all-purpose flour, ground cinnamon, salt, and chopped pecans. Add softened butter and use your fingers to blend until the mixture resembles wet sand, distributing butter evenly for a crumbly topping.
  5. Assemble and Bake: Pour the sweet potato mixture evenly into the prepared baking dish. Sprinkle the pecan topping liberally over the surface. Place the dish on the middle rack of the preheated oven and bake for 30 to 40 minutes until the topping is golden brown and crisp.
  6. Cool and Serve: Remove from oven and let cool slightly for easier serving. Serve warm as a comforting side dish perfect for holidays or any special occasion.

Notes

  • Use medium sweet potatoes for the right sweetness and texture.
  • Ensure sweet potatoes are thoroughly mashed for a smooth soufflé.
  • For a dairy-free version, substitute half and half and butter with plant-based alternatives.
  • The topping can be prepared ahead and refrigerated until ready to use.
  • For extra crunch, toast pecans lightly before adding to topping.

Keywords: sweet potato souffle, sweet potato casserole, holiday side dish, pecan topping, baked sweet potatoes