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Cosmic Brownie Cookies

Jessie M
These cosmic brownie cookies are a fudgy brownie cookie topped with chocolate ganache and rainbow candies. This is easy to make, no chill recipe is done by hand. A copycat version of Little Debbies Cosmic Brownies in cookie form.
Prep Time 20 mins
Cook Time 9 mins
Course dessert
Cuisine American, Canadian
Servings 20 cookies


  • large bowl
  • baking pan


Brownie Cookies

  • 8 oz semi sweet baking chocolate
  • 1/4 C salted butter
  • 1/2 C all purpose flour spooned and levelled*
  • 2 tbsp cocoa powder
  • 1/2 tsp baking powder
  • 1/4 tsp salt
  • 1/2 C brown sugar
  • 1/2 C white sugar
  • 2 large eggs at room temperature
  • 1 tsp vanilla extract

Chocolate Ganache

  • 3/4 C semi sweet chocolate chips
  • 3 tbsp heavy cream
  • 1/4 C rainbow candy coated chocolate chips


  • Preheat oven to 350 F and line baking pan with parchment paper.

Brownie Cookies

  • Chop chocolate and place in a microwave safe bowl with the butter. Microwave in 20 second increments (stirring in-between) until melted. Set aside.
    8 oz semi sweet baking chocolate, 1/4 C salted butter
  • Whisk together flour, cocoa powder, baking powder, and salt in a medium sized bowl. Set aside.
    1/2 C all purpose flour, 2 tbsp cocoa powder, 1/2 tsp baking powder, 1/4 tsp salt
  • In a large bowl whisk brown sugar, white sugar, and eggs for a good 5 minutes. The mixture should thicken slightly and be frothy.
    1/2 C brown sugar, 1/2 C white sugar, 2 large eggs
  • Add in the melted chocolate and butter mixture, and vanilla. Whisk till until combined.
    8 oz semi sweet baking chocolate, 1/4 C salted butter, 1 tsp vanilla extract
  • Add the flour mixture and mix with a rubber spatula just until no flour streaks remain.
  • Scoop out 1 & 1/2 tbsp on dough (I like using a cookie/ice cream scoop) and place onto the baking sheet. Dough will still be soft and have a texture similar to chocolate frosting. Leave 2 inches between each cookie.
  • Baking for 8-9 minutes or until cookies are set on the edges and has a crackle top. They will still look soft in the middle but will stiffen after cooling.
  • Let cookies fully cool to room temperature on the baking sheets before moving.

Chocolate Ganache

  • In a bowl add the chocolate chips, set aside.
    3/4 C semi sweet chocolate chips
  • In another microwave safe bowl add the heavy cream and heat till just before boiling, (about 40 seconds).
    3 tbsp heavy cream
  • Pour the heated cream over the chocolate chips and let sit for a minute. Mix chocolate and cream together.
    If there are still chunks of chocolate in the microwave for a few seconds and stir again. The ganache should be completely smooth.
  • Evenly spoon and smooth the ganache on each cookie.
  • Top the warm ganache with the rainbow candies.
    1/4 C rainbow candy coated chocolate chips
  • Let chocolate ganache set by placing in the fridge for 20 minutes. Enjoy!


*Spooned and levelled flour refers to the way of measuring flour. To properly measure flour you should scoop spoonfuls of flour into your measuring cup and then level off the access by scraping with a knife. Scooping the measuring cup directly into your flour causes the flour to compress and you will get more flour than the recipe calls for.
Keyword brownie, brownie cookie, brownie cookies, chocolate ganache, copy cat recipe, copycat cosmic brownies, cosmic, cosmic brownie cookies, cosmic brownies, fudgy