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Red Velvet Brownies with White Chocolate Buttercream Frosting Recipe

The perfect Valentine’s dessert! Red velvet brownies with white chocolate buttercream frosting is so decadent with the sweet and fluffy frosting and cakelike brownie base!
Prep Time15 mins
Cook Time45 mins
Total Time1 hr
Course: Dessert
Cuisine: American
Keyword: Brownies, frosted brownies, red velvet, red velvet brownies, Valentine's Day, white chocolate buttercream frosting
Servings: 15 Servings
Calories: 559kcal


  • 9x13-inch Baking Pan
  • Non-stick Cooking Spray
  • Medium Mixing Bowl (2)
  • Microwave Safe Bowl
  • spatula
  • Hand or Stand Mixer



  • 15.25 ounces Red Velvet Cake Mix 1 box
  • ¾ cup butter melted
  • 1 egg
  • ½ cup water
  • 1 cup semisweet chocolate chips
  • 1 cup chopped walnuts optional

White Chocolate Buttercream Frosting

  • ½ cup butter softened
  • 1 teaspoon vanilla extract
  • 4 ounces white chocolate
  • 1 Tablespoon heavy cream
  • cups powdered sugar



  • Preheat oven to 325 degrees.
  • Combine egg, butter, water in a bowl. Add box mix, stir until the ingredients are combined, and lumps are gone.
  • Add chips and nuts, and pour mixture into the greased 9x13-inch baking pan.
  • Bake for 40-45 minutes.
  • Let cool for 15 minutes and place the brownies on wire cooling rack.

White Chocolate Buttercream Frosting

  • Cream butter until soft and fluffy (about 3-5 minutes), then beat in the vanilla.
  • With the mixer on low speed, slowly add in powdered sugar 1/2 cup at a time; allow the sugar to mix in before adding the next 1/2 cup.
  • Once all of the sugar has been added, beat on medium speed for 30 seconds and scrape down the sides of the bowl.
  • Add in the melted white chocolate and beat on medium speed until incorporated.
  • With the mixer on low, add in heavy cream and beat at medium speed until the frosting has reached your desired consistency.


  • If you don't want to use a box mix cake, directions for homemade Red Velvet Cake Mix is above.
  • When you add in the box of brownie mix, stir everything until lumps are gone and well combined.
  • Make sure your mixer is on low speed when adding in the powdered sugar.
  • Add about a ½ cup at a time.
  • Make sure the powdered sugar is completely combined before adding more.


Calories: 559kcal | Carbohydrates: 54g | Protein: 6g | Fat: 38g | Saturated Fat: 16g | Trans Fat: 1g | Cholesterol: 55mg | Sodium: 387mg | Potassium: 264mg | Fiber: 3g | Sugar: 40g | Vitamin A: 516IU | Vitamin C: 1mg | Calcium: 88mg | Iron: 3mg