Aunt Margaret's Sweet Potato Casserole Recipe
Aunt Margaret's Sweet Potato Casserole Recipe photo by Taste of Home
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Aunt Margaret's Sweet Potato Casserole Recipe

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My great aunt made an incredible sweet potato casserole for our holiday dinners. I’ve lightened it up a bit, but we love it just the same. —Beth Britton, Fairlawn, Ohio
TOTAL TIME: Prep: 50 min. Bake: 50 min.
MAKES:12 servings
TOTAL TIME: Prep: 50 min. Bake: 50 min.
MAKES: 12 servings


  • 3 pounds sweet potatoes (about 3 large), peeled and cubed
  • 1/2 cup sugar
  • 1/2 cup 2% milk
  • 2 large eggs, lightly beaten
  • 1/4 cup butter
  • 1 teaspoon vanilla extract
  • 3/4 cup all-purpose flour
  • 3/4 cup packed brown sugar
  • 3/4 cup old-fashioned oats
  • 1/8 teaspoon salt
  • 1/3 cup cold butter, cubed
  • 2 cups miniature marshmallows

Nutritional Facts

1/2 cup: 373 calories, 11g fat (6g saturated fat), 56mg cholesterol, 134mg sodium, 66g carbohydrate (39g sugars, 4g fiber), 5g protein.


  1. Preheat oven to 350°. Place sweet potatoes in a 6-qt. stockpot; add water to cover. Bring to a boil. Reduce heat; cook, uncovered, 10-12 minutes or until tender. Meanwhile, make topping by combining flour, brown sugar, oats and salt; cut in butter until crumbly.
  2. Drain potatoes; return to pan. Beat until mashed. Add sugar, milk, eggs, butter and vanilla; beat until combined. Transfer to a broiler-safe 13x9-in. baking dish. Sprinkle topping over potato mixture.
  3. Bake, uncovered, until topping is golden brown, about 45 minutes; let stand 10 minutes. Sprinkle with marshmallows. If desired, broil 4-5 inches from heat, 30-45 seconds or until marshmallows are puffed and golden. Yield: 12 servings.

Test Kitchen tip
  • If you add the marshmallows right out of the oven, they'll start to melt together and form a silky marshmallow layer.
  • Originally published as Aunt Margaret's Sweet Potato Casserole in Taste of Home November 2016, p16

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    Queenlalisa User ID: 15400 257794
    Reviewed Dec. 7, 2016

    "I made this recipe for Thanksgiving exactly as it was written. It was very flavorful and just what I was looking for. Another TOH success! It's a keeper."

    Debglass11 User ID: 6300479 257421
    Reviewed Nov. 29, 2016

    "Made this for Thanksgiving this year and it was a hit! I increased the sweet potatoes to seven and added an extra egg, and increased the half and half, sugar and vanilla to taste before before adding the eggs. I also added some kosher salt to round out the sweetness. I didn't use the marshmallows, but instead added chopped pecans to the topping. Everyone loved it. This is a keeper for next Thanksgiving.....or any time of year!"

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