Hot Chocolate Brownies

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These hot chocolate brownies start with the simplicity of a cake mix, but the homemade hot cocoa buttercream make them stand out! You may also love our homemade hot cooca

hot chocolate brownies recipe

Hot Chocolate Brownies

What are some of your favorite snow stories? I remember one time our dog, Josie, came in with clumps of snow as big as baseballs stuck all over her legs and paws. It took a while for it to melt, and she was not happy in the meantime. We took so many pictures- the poor dog was probably humiliated!

Have you ever come out from playing in the snow, peeled layers of coats off and warmed up with a mug of hot cocoa? I love coming in from shoveling the driveway with my brother and sitting at the table, sipping hot chocolate with melted marshmallows and peppermint sticks.


These Hot Chocolate Brownies would be perfect with a cup of hot cocoa.  That’s a lot of chocolate!  But can you really ever have too much chocolate?

easy cake mix brownies recipe with buttercream

Cake Mix Brownies

These Hot Chocolate Brownies are not the normal Fudgy Brownies we use most of the time. As good as those are, we decided to switch it up a bit this time. These bars are a special variation of a chocolate chip cookie bar we found here. It starts with a simple cake mix, and you add in a pudding mix, mini chocolate chips, oil, egg and instant coffee. These bars end up very chocolatey, but oh, so soft.

Hot Cocoa Buttercream

The simple homemade hot cocoa buttercream brings it all together. Simply add some powdered hot cocoa mix to traditional buttercream. It tastes a lot like hot chocolate, and if you sprinkle mini chocolate chips and marshmallow bits on top, it’s almost like the real thing.

We set them out for friends at our small group and I didn’t get to eat one- they were gone!


Easy hot chocolate brownies with chocolate buttercream
Easy hot chocolate brownies with chocolate buttercream

Hot Chocolate Brownies

4.50 from 2 votes
These chocolate bars start with the simplicity of a cake mix, but the homemade hot cocoa buttercream make them stand out!
Servings 20
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes


  • 1/4 cup hot water
  • 3 tablespoons instant coffee granules
  • 15.25 ounces chocolate cake mix
  • 3.4 ounces instant chocolate pudding (small box)
  • 3/4 cup vegetable oil
  • 2 large eggs
  • 1 cup mini chocolate chips

Hot Cocoa Buttercream:

  • 1 cup butter (softened)
  • 3 1/2 cups powdered sugar
  • 1/4 cup powdered hot cocoa mix
  • 1/2 teaspoon salt
  • 2 teaspoons vanilla
  • 4 tablespoons heavy cream or milk
  • 1/2 cup marshmallow bits
  • 1/4 cup mini chocolate chips


  • Combine the hot water and coffee granules. Combine all of the ingredients, including the coffee, in a large bowl. The batter will be very thick. Spread the batter into a greased 9x13 baking pan. Bake at 350 degrees for 20 minutes. We like to undercook our bars just a bit so they are gooey. If you'd like to, you can bake them another 5 minutes little longer to have a firmer bar.
  • For the buttercream, cream the butter in a stand mixer for about 3 minutes. Add the powdered sugar, hot cocoa mix, salt, vanilla and heavy cream. Beat on medium speed for 3 minutes, or until fluffy.
  • Sprinkle the marshmallow bits and mini chocolate chips over the top of the buttercream. Gently press down on top of the marshmallows and chips to press them into the buttercream.


The calories shown are based on the recipe being cut into 20 pieces and all of the frosting used, with 1 serving being 1 frosted brownie. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate.


Calories: 434kcal | Carbohydrates: 52g | Protein: 2g | Fat: 25g | Saturated Fat: 15g | Cholesterol: 48mg | Sodium: 417mg | Potassium: 121mg | Fiber: 1g | Sugar: 41g | Vitamin A: 380IU | Vitamin C: 0.1mg | Calcium: 56mg | Iron: 1.3mg
Author Lizzy T
Course Dessert
Cuisine American
Calories 434
Keyword cake mix brownies, hot cocoa

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