Low-Carb, Keto

Low-Carb, Keto "Cosmic" Brownies

2 minute read

Low-Carb, Keto "Cosmic" Brownies 💫 This classic childhood favorite copycat recipe is made so easy and no-sugar-added using our best selling low-carb fudge brownie mix! A perfectly fudgy tray of brownies topped with a thick layer of rich, 2-ingredient keto chocolate ganache. These brownies are out-of-this-world delicious with only 1g net carb each. 

Per “cosmic” brownie: 130 calories 12g F / 1g C (net) / 3g P / 7g fiber / 0g sugar


  • 1 bag FitBake fudge brownie mix
  • 1/2 cup heavy cream (or 1/3 cup almond milk or milk of choice + 2 tbsp butter or vegan butter)
  • 1/2 cup sugar-free chocolate chips
  • 1-2 tsp rainbow sprinkles, optional


  1. Prepare brownie mix batter according to package instructions, but do not add chocolate chips to the batter. Bake according to package instructions, and allow to cool.

  2. Heat heavy cream (or milk + butter) over low-medium heat just until it starts to bubble. Add chocolate chips, remove from heat, and stir until smooth. Allow to cool. 

  3. Pour and spread ganache evenly on top of the brownies. Top with sprinkles. 

  4. Place the entire pan in the refrigerator for at least 2-4 hours or until the ganache sets.

  5. Slice into 16 squares with a sharp knife.

  6. Enjoy!

  • *For an alternative ganache and dairy-free option, try using our pre-made chocolate buttercream frosting. Just heat gently for a few seconds in a microwave safe cup until it reaches a pourable consistency, then spread over brownies. Allow to set in the fridge.

Keto Cosmic Brownies

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