Copycat Little Debbie Cosmic Brownies

Total Time Prep/Total Time: 30 min.
Yield 12 brownies
Test Kitchen Approved
Our copycat Little Debbie Cosmic Brownies taste just like everyone's favorite '90s snack cake.

Ingredients

  • 1/3 cup butter, softened
  • 1 cup sugar
  • 1 teaspoon vanilla extract
  • 3 large egg whites, room temperature
  • 2/3 cup all-purpose flour
  • 1/2 cup baking cocoa
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon salt
  • GLAZE:
  • 2 tablespoons water
  • 1/4 teaspoon vanilla extract
  • 2 tablespoons baking cocoa
  • 2/3 cup confectioners' sugar
  • 1/4 cup rainbow crunch sprinkles

Directions

  1. Preheat oven to 350°. In a large bowl, beat butter and sugar at medium speed until light and fluffy, 2-3 minutes. Beat in vanilla extract and egg whites, one at a time, until mixture is fluffy, 1-2 minutes.
  2. In another large bowl, whisk together flour, cocoa, baking powder and salt. Gradually add flour mixture to bowl with wet ingredients, beating until combined. Transfer batter to a greased 8-in. square cake pan. Bake until a toothpick inserted into the center comes out clean, 20-25 minutes. Let cool.
  3. In a large bowl, whisk together water, vanilla extract and cocoa. Gradually whisk in confectioners' sugar until combined. Pour glaze over brownies; spread into an even layer. Garnish with sprinkles; slice into squares.

Nutrition Facts

1 brownie: 198 calories, 6g fat (3g saturated fat), 13mg cholesterol, 124mg sodium, 34g carbohydrate (25g sugars, 1g fiber), 3g protein.

Take a nostalgic trip to the past with these copycat Cosmic Brownies. Chocolate-dense brownies are covered in a chocolate glaze and finished with festive sprinkles! —Emily Parulski, Saint Francis, Wisconsin
Recipe Creator

© 2025 RDA Enthusiast Brands, LLC