Brownies are one of my all-time favorite desserts, so any recipe that increases the deliciousness of a brownie three-fold is right up my alley! Today’s recipe for triple-layer brownie bars features a delicious oat layer, topped by a layer of brownie and then a layer of rich chocolate frosting. My entire family loves them, and I know yours will too!
Triple-Layer Brownie Bars
- 1 cup rolled oats
- 1/2 cup all-purpose flour
- 1/2 cup packed brown sugar
- 1/4 teaspoon baking soda
- 1/4 teaspoon ground cinnamon
- 1/2 cup butter melted
- 1 egg slightly beaten
- 3/4 cup granulated sugar
- 2/3 cup all-purpose flour
- 1/4 cup milk
- 1/4 cup butter melted
- 1 ounce unsweetened chocolate melted and cooled
- 1 teaspoon vanilla
- 1/2 teaspoon salt
- 1/4 teaspoon baking powder
- 1/2 cup chopped walnuts
- 1 ounce unsweetened chocolate
- 2 tablespoons butter
- 1/2 teaspoon vanilla
- 1 1/2 cups sifted powdered sugar
- Preheat oven to 350.
- For the bottom layer, in a medium bowl, stir together the oats, 1/2 cup flour, brown sugar, baking soda and cinnamon. Add the melted butter, and stir to combine. Press mixture into the bottom of a greased 9x13 pan. Bake for 8 minutes, or until mixture is bubbly and slightly browned.
- While bottom layer is baking, prepare the brownie layer. In a large bowl, com the egg and granulated sugar, whisking to combine. With a wooden spoon, stir in the 2/3 cup flour. Add the milk, 1/4 cup butter, 1 ounce melted chocolate, 1 teaspoon vanilla, salt and baking powder, and stir until fully incorporated. Fold in the walnuts. Spread mixture over baked oat crust. Bake for 18-20 minutes or until a wooden pick inserted near the center comes out clean. Remove from oven and place on a wire rack.
- For the frosting, place the remaining 1 ounce chocolate and the 2 tablespoons butter in a microwave-safe bowl. Heat on high for 1 minute, stirring after 3 seconds, until the mixture is fully melted. Stir well to combine. Stir in the 1/2 teaspoon vanilla. Gradually stir in the powdered sugar, mixing well, until the frosting is smooth and spreadable. (Add an additional 1-2 tablespoons warm milk if necessary if the mixture is too thick.) Spread frosting on top of brownie layer in pan. Cool completely before cutting into 16 bars.
Each an every layer here adds depth of flavor. The oats are such an unexpected addition!
Looking for even more delicious dessert ideas? Check out these from the PS archives!
Having grown up in a home brimming with sewing notions and paintbrushes, Amy has a deep love for all things creative. On any given day, you’ll find her knee-deep in her latest creative endeavor, with projects ranging from sewing and crafts to home decor and kid-friendly ideas. Amy believes that everyone, regardless of skill level or experience, possesses the ability to create something beautiful, and Positively Splendid was born of her passion for helping others harness their innate creative potential.