Fudgy Oat Brownies

Total Time

Prep: 30 min. Bake: 35 min. + cooling

Makes

3 dozen

Updated: Jan. 03, 2024
These cakelike brownies have a rich, crunchy oat crust and a smooth homemade chocolate frosting. A packaged brownie mix makes the recipe easy to prepare. You can make it even easier by using canned frosting. —Diana Otterson, Canandaigua, New York
Fudgy Oat Brownies Recipe photo by Taste of Home

Ingredients

  • 1-1/2 cups quick-cooking oats
  • 3/4 cup all-purpose flour
  • 3/4 cup packed brown sugar
  • 1/4 teaspoon baking soda
  • 1/4 teaspoon salt
  • 3/4 cup butter, melted
  • 1 package fudge brownie mix (13x9-inch pan size)
  • FROSTING:
  • 3 tablespoons butter
  • 1-1/2 ounces unsweetened chocolate
  • 2-1/4 cups confectioners' sugar
  • 3 to 4 tablespoons hot water
  • 1-1/2 teaspoons vanilla extract

Directions

  1. In a large bowl, combine the oats, flour, brown sugar, baking soda and salt. Stir in butter until combined. Press into an ungreased 13x9-in. baking pan. Bake at 350° for 10-11 minutes or until puffed and edges are lightly browned.
  2. Meanwhile, prepare brownie mix according to package directions for cakelike brownies. Spread batter over crust. Bake 25-30 minutes longer or until a toothpick inserted in the center comes out clean.
  3. For frosting, in a microwave-safe bowl, melt butter and chocolate; stir until smooth. Immediately stir in the confectioners' sugar, 2 tablespoons water and vanilla until smooth. Add remaining water as desired; stir until smooth. Immediately spread over brownies. Cool on a wire rack until firm. Cut into 36 bars.

Nutrition Facts

1 brownie: 217 calories, 11g fat (4g saturated fat), 29mg cholesterol, 131mg sodium, 29g carbohydrate (20g sugars, 1g fiber), 2g protein.