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5 from 1 vote

Crumbl Cosmic Brownie Cookies {Boxed Mix}

These copycat crumbl cosmic brownie cookies are a chocolate lovers’ delight! They are colorful, fun, and full of decedent chocolate flavor!
Prep Time20 mins
Cook Time10 mins
Cooling Time20 mins
Total Time50 mins
Course: Dessert, Snack
Cuisine: American
Servings: 12 Servings
Calories: 397kcal
Author: Sunena Anand


  • 20 oz Dark chocolate brownie mix
  • 2 Large eggs
  • ¼ cup Vegetable oil
  • ¼ cup All purpose flour

For the Ganache

  • 10 oz Semi-sweet chocolate melting discs
  • 10 oz Heavy whipping cream
  • ¼ cup Chocolate teenies


  • Preheat the oven to 375°F.
  • In a microwave-safe bowl, heat the heavy cream in 30 second increments in the microwave, until the cream is hot.
  • Pour the hot cream over the chocolate discs in a medium-sized mixing bowl, and whisk or stir vigorously to melt the chocolate into a smooth ganache. Cover the bowl with plastic wrap, and refrigerate to let the ganache thicken.
  • Add the ingredients for the cookie dough to a stand mixer, or to a mixing bowl. Mix together with a paddle attachment or with a rubber spatula, until the mixture resembles a thick cookie dough.
  • Using a 1 ½ tablespoon ice cream scoop, portion out the cookie dough into 12 balls. Scoop out the dough onto a lined or greased baking sheet. Flatten the cookies gently with your fingers, and press down an indent into the centre of the cookie.
  • Bake the cookies for 10-12 minutes. They should spread out, and still be very soft to the touch. You will also find that the cookies should start to crackle on the top.
  • Let the cookies cool for 10-15 minutes out of the oven. Spoon over the cooled and thickened chocolate ganache onto the cookies, especially in the middle. Top with the chocolate candies, and let the cookies cool to allow the ganache to set.


  • For perfectly round cookies: Shape the cookies while they are still warm with a glass. Shift the edges of the cookies in the glass, for a perfectly round shape. 
  • Underbake the cookies: If you like fudgey brownies, I recommend ensuring that you take the cookies out when they are just starting to solidify, but still very soft. They will continue to firm up while they cool, and this will ensure a fudgey centre. 
  • For the best results: Use a silicone mat on your baking sheets. The silicone mat heats evenly, and ensures a smooth bottom with no sticking.


Calories: 397kcal | Carbohydrates: 56g | Protein: 5g | Fat: 17g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.03g | Cholesterol: 29mg | Sodium: 161mg | Potassium: 147mg | Fiber: 2g | Sugar: 36g | Vitamin A: 61IU | Vitamin C: 0.03mg | Calcium: 24mg | Iron: 3mg