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Potato Chocolate Cake

"When I have mashed potatoes for dinner, I always use the leftovers to throw together this moist chocolate cake the next day," writes J.P. DeGagne from Kaneohe, Hawaii. "The lightly colored treat freezes well, too, but don't frost it until serving."
  • Total Time
    Prep: 15 min. Bake: 30 min. + cooling
  • Makes
    12-15 servings

Ingredients

  • 3/4 cup butter, softened
  • 2 cups sugar
  • 4 eggs, separated
  • 1 cup mashed potatoes
  • 1/2 cup water
  • 1 teaspoon vanilla extract
  • 2 cups all-purpose flour
  • 3 tablespoons baking cocoa
  • 2 teaspoons baking powder
  • 1 cup chopped walnuts
  • 1 can (16 ounces) chocolate frosting

Directions

  • In a large bowl, cream the butter and sugar. Add the egg yolks, potatoes, water and vanilla; mix well. Combine the flour, cocoa and baking powder; add to the creamed mixture. In a small bowl; beat egg whites until stiff peaks form; fold into batter along with walnuts.
  • Pour into a greased 13x9-in. baking pan. Bake at 350° for 30-35 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack. Frost with chocolate frosting.
Nutrition Facts
1 piece: 452 calories, 21g fat (8g saturated fat), 82mg cholesterol, 269mg sodium, 62g carbohydrate (42g sugars, 1g fiber), 6g protein.
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