January 22, 2014

Triple-Layer Brownie Bars

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!

These triple-layer brownie bars look downright decadent! Yum!

Triple-Layer Brownie Bars

Prep time: 

Cook time: 

Total time: 

Serving size: 16

Calories: 293

Fat: 15g

A delicious bar cookie recipe featuring an oat layer, a brownie layer and a layer of rich chocolate frosting. So decadent!
  • 1 cup rolled oats
  • ½ cup all-purpose flour
  • ½ cup packed brown sugar
  • ¼ teaspoon baking soda
  • ¼ teaspoon ground cinnamon
  • ½ cup butter, melted
  • 1 egg, slightly beaten
  • ¾ cup granulated sugar
  • ⅔ cup all-purpose flour
  • ¼ cup milk
  • ¼ cup butter, melted
  • 1 ounce unsweetened chocolate, melted and cooled
  • 1 teaspoon vanilla
  • ½ teaspoon salt
  • ¼ teaspoon baking powder
  • ½ cup chopped walnuts
  • 1 ounce unsweetened chocolate
  • 2 tablespoons butter
  • ½ teaspoon vanilla
  • 1½ cups sifted powdered sugar
  1. Preheat oven to 350.
  2. For the bottom layer, in a medium bowl, stir together the oats, ½ 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.
  3. 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 ⅔ cup flour. Add the milk, ¼ 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.
  4. 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 ½ 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.
These are absolutely delicious served on their own, but they would be spectacular, too, served with a dollop of vanilla ice cream!

These triple-layer brownie bars look downright decadent! Yum!

 Each an every layer here adds depth of flavor. The oats are such an unexpected addition!

These triple-layer brownie bars look downright decadent! Yum!


Looking for even more delicious dessert ideas? Check out these from the PS archives!

Milky Way Chocolate Cake

Chocolate-Marbled Blondies

Pecan Cheesecake Squares

Layered Chocolate Eclair Dessert

Amy @ Positively Splendid

Amy @ Positively Splendid

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.
Amy @ Positively Splendid
Amy @ Positively Splendid

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2 Responses to Triple-Layer Brownie Bars

  1. danielle January 22, 2014 at 8:03 am #

    brownies are my all time favorite dessert and you just married it with my all time favorite cookie – I never thought of adding oats. Sounds delish!

  2. Linda Cole (Style Whiz) January 25, 2014 at 11:04 pm #

    These brownies look so delicious and I would definitely add ice cream.

    Will be trying that recipe for sure..

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