Classic Sweet Potato Casserole With Marshmallows

Simple, timeless, but splendid.

Hands On Time:
20 mins
Total Time:
2 hrs 40 mins
6 to 8 servings

Nothing says Thanksgiving in the South like classic sweet potato casserole, and this recipe has all of our favorite ingredients—cornflakes, marshmallows, and pecans, oh my!

While this dish isn't technically a dessert, it's just sugary enough to curve your sweet tooth. The cornflake cereal adds the perfect amount of crunch to this traditional cuisine; it's sure to be the shining star of your holiday spread.

With only 20 minutes of preparation time, this sweet potato casserole with marshmallows is a great dish to add to your Thanksgiving menu because it won't keep you occupied for long, which means more quality time with family. The toasted marshmallow topping will undoubtedly be the talk of the party, and with all of the credit and very little effort put in, what more could you ask of a holiday dish?

Classic Sweet Potato Casserole
Emily Laurae/Southern Living


  • 4 1/2 lbs. sweet potatoes

  • 1 cup granulated sugar

  • 1/2 cup butter, softened

  • 1/4 cup milk

  • 2 large eggs

  • 1 tsp. vanilla extract

  • 1/4 tsp. salt

  • 1 1/4 cups cornflakes cereal, crushed

  • 1/4 cup chopped pecans

  • 1 Tbsp. brown sugar

  • 1 Tbsp. butter, melted

  • 1 1/2 cups miniature marshmallows


  1. Preheat oven to 400°F. Bake sweet potatoes at 400°F for 1 hour or until tender. Let stand until cool to touch (about 20 minutes).

    baked sweet potatoes on baking sheet

    Emily Laurae / Southern Living

    Peel and mash sweet potatoes. Reduce oven temperature to 350°F.

    mashed sweet potatoes in a white bowl

    Emily Laurae / Southern Living

  2. Beat mashed sweet potatoes, granulated sugar, and next 5 ingredients at medium speed with an electric mixer until smooth. Spoon potato mixture into a greased 11- x 7-inch baking dish.

    sweet potato mash in baking pan

    Emily Laurae / Southern Living

  3. Combine cornflakes cereal and next 3 ingredients in a small bowl. Sprinkle over casserole in diagonal rows 2 inches apart.

    sweet potato casserole with cornflake topping

    Emily Laurae / Southern Living

  4. Bake at 350°F for 30 minutes. Remove from oven; let stand 10 minutes. Sprinkle marshmallows in alternate rows between cornflake mixture; bake 10 minutes. Let stand 10 minutes before serving.

    completed sweet potato casserole

    Emily Laurae / Southern Living

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