Restaurant-Style Sweet Potato Casserole

This restaurant-style sweet potato casserole recipe, topped with oatmeal, brown sugar, cream, and marshmallow streusel, tastes like sweet potato pie.

• Preparation Time: 20 mins
• Cooking Time: 2 hr 10 mins
• Total Time: 2 hr 30 mins
• Calories: 269 Calories

Ingredients

• 1 tablespoon all-purpose flour
• 2 cups miniature marshmallows
• 2 tablespoons cold butter
• 1 teaspoon vegetable oil, or as needed
• 2 teaspoons dark brown sugar
• 0.25 teaspoon salt
• 0.5 cup heavy whipping cream
• 0.25 teaspoon ground cinnamon
• 0.25 cup rolled oats
• 0.125 teaspoon ground cinnamon
• 0.75 cup dark brown sugar
• 0.25 cup melted butter
• 2.5 pounds sweet potatoes

Recipe Instructions

Step 1

Preheat the oven to 400 degrees F (200 degrees C).

Step 2

Bake in the preheated oven until sweet potatoes are heated through and oatmeal streusel is lightly browned, 70 to 80 minutes. Remove from oven, sprinkle immediately with marshmallows, and let stand until marshmallows are melted, about 10 minutes.

Step 3

Rub sweet potato skins with vegetable oil; place on a baking sheet.

Step 4

Bake in the preheated oven until tender, about 1 hour; cool slightly. Reduce oven temperature to 350 degrees F (175 degrees C).

Step 5

Cut sweet potatoes in half; scrape flesh into a large bowl when cool enough to handle. Discard skins. Beat sweet potatoes with an electric mixer until smooth.

Step 6

Transfer 6 cups mashed sweet potatoes to a separate large bowl. Add ¾ cup brown sugar, cream, ¼ cup melted butter, ¼ teaspoon cinnamon, and salt; beat to combine. Pour sweet potato mixture into an 8x8-inch baking dish.

Step 7

Place rolled oats into the bowl of a food processor or blender; pulse until finely ground. Combine oats, 2 tablespoons brown sugar, flour, and ⅛ teaspoon cinnamon in a bowl; cut in 2 tablespoons cold butter with a pastry blender or fork until crumbly. Sprinkle evenly over sweet potato mixture.