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Whipped Sweet Potatoes with Pecan Streusel Topping

by Marge Perry on November 21, 2012

This is the dish my family asks me to make for Thanksgiving. It is sweet but not heavy; the potatoes are light and fluffy, thanks to whipped egg whites, and the topping is crunchy, nutty and sweet– but not cloying.  Do everything up to step #4 today: tomorrow morning, beat the egg whites and combine with the filling, assemble the dish and put it in the oven to bake when the turkey comes out to rest.

Note: After you cook the potatoes, store them in the baking dish in which they will bake, cover and refrigerate. (Be sure to coat the baking dish with cooking spray first). Chances are the baking dish is easier to fit in the fridge than a big bowl, and there is no reason to wash it in between. Combine the potatoes with the egg whites  tomorrow, transfer back to the baking dish, add the topping, and you are good to go.

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Whipped Sweet Potatoes with Pecan Streusel Topping

5 pounds sweet potatoes, peeled and cut in 1/2-inch pieces

1/2 cup light brown sugar

2 teaspoons orange zest

1 tablespoon orange juice

1 teaspoon cinnamon

1/2 teaspoon ground allspice

1/2 teaspoon ground nutmeg

1 teaspoon salt

3 large egg whites

Streusel:

1/2  cup packed light brown sugar

1/4 cup all-purpose flour
1/4 teaspoon ground cinnamon

3 tablespoons cold unsalted butter, cut in bits

2/3  cup chopped pecans

  1. Fill a large pot 3/4 of the way with water and add the potatoes. Bring to a boil, reduce heat and simmer for 25 minutes, or until potatoes are very tender. Drain and puree in a food processor or blender until smooth. (You may have to work in batches). Combine the potatoes with the brown sugar, orange juice and zest, cinnamon, allspice, nutmeg and salt.
  2. Make the streusel topping: combine the brown sugar, flour, and cinnamon in a bowl and cut in the butter. Stir in the pecans and keep refrigerated until you’re ready to bake the casserole. The dish may be made up until this point, keeping the potatoes and topping separate, up to 2 days in advance.
  3. Preheat the oven to 400F. Coat a 9 x 13 baking dish with cooking spray.
  4. Just before baking, whip the egg whites until they form soft peaks. Stir 1/4 of the egg whites into the potatoes, then gently fold the remaining egg in. Transfer to the baking dish and top with the streusel. Bake 30 minutes, or until the top is lightly browned and a thermometer inserted in the center of the casserole registers 160F. (If your oven is hot and the topping is browning too quickly, coat a piece of foil with cooking spray and lie it loosely across the top of the dish.)  

{ 4 comments… read them below or add one }

Amy Nieeporent November 21, 2012 at 6:21 am

This sounds amazing..I will store it away for the future!

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Ebo November 21, 2012 at 8:47 am

I’m happy because we are having this tomorrow!!!!!!!!

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Rachel November 26, 2012 at 9:52 am

These are sooo good, I ate way too many at Thanksgiving.

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Anne Carter November 17, 2013 at 7:18 pm

I was just in the south for a week and had an amazing sweet potato casserole at a restaurant and subsequently got the recipe — I think it’s yours! :) Happy Thanksgiving, Marge!

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