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Copycat Cosmic Brownies

I love brownies. Even box brownies which I feel like a lot of bakers would argue that boxed is a sin – not me. Boxed brownies are great BUT I do think that baking them from scratch takes them to the next level.

Then we have cosmic brownies which don’t have the traditional texture or look as regular brownies. They’re super fudgey and have a soft and chewy ganache layered on top. They were absolutely one of my favorites as a kid. So since I am a kid at heart, we’re baking them from scratch.


Cosmic Brownie tutorial! šŸ˜‹ They are so fudgey and chewy just like cosmic brownies BUT BETTER cause homemade = love šŸ„² #baking #recipe #tutorial #fyp #yum #bakingtiktok #valentinesday #brownies #browniesrecipe #recipe #chocolate #cosmicbrownie

ā™¬ Sia – Xeptemper

Copycat Cosmic Brownies

Recipe by Maddison Koutrouba – thesqueakymixer.com
4.7 from 3 votes


Total time


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  • 12 Tbsp. 12 unsalted butter, melted

  • 1 cup 1 unsweetened cocoa powder

  • 1/2 cups 1/2 brown sugar

  • 3/4 cups 3/4 sugar

  • 3 tsp. 3 vanilla extract

  • 2 2 eggs, room temperature

  • 1 1/4 cups 1 1/4 all-purpose flour

  • 1/2 tsp. 1/2 cornstarch

  • 1/4 tsp. 1/4 salt

  • Chocolate Ganache
  • 1 1/2 cups 1 1/2 semi-sweet chocolate chips

  • 1 1/4 cups 1 1/4 heavy whipping cream

  • Festive sprinkles (optional)


  • Preheat the oven to 350 degrees and line a 9″ x 13″ pan with parchment paper and grease with non stick spray. Set aside.
  • In the bowl of a stand mixer fit with the paddle attachment or in a medium sized mixing bowl, whisk together the melted butter and cocoa powder until smooth.
  • Add in the sugars. Continue to whisk.
  • Add in the vanilla. Whisk in the eggs one at a time making sure to incorporate each one evenly.
  • Sift in the dry ingredients one at a time: flour, cornstarch and salt.
  • Whisk until smooth. The batter will be very thick, don’t worry!
  • Pour and spread the brownie batter into the prepared pan evenly distributing it throughout the pan. Bake for 15-20 minutes or until the middle doesn’t jiggle and the edges are darkened.
  • While the brownies cool in their pan, prepare the ganache.
  • Place the chocolate chips in a small bowl.
  • Microwave the heavy cream in a microwave safe dish until it begins to bubble.
  • Pour the cream over the chocolate, coating it completely. Let sit for a full minute.
  • Whisk the chocolate and cream together until the mixture is smooth and velvety.
  • Once the brownies are completely cooled, pour the ganache over the brownies spreading it evenly to coat. Add your desired sprinkles.
  • Let the ganache set for about 20 minutes in the fridge before slicing.
  • Slice into even squares.
  • Enjoy!

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