Cosmic Brownie Cookies

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Cosmic Brownie Cookies are a fun twist on the popular cosmic brownies Little Debbie treat! Chewy chocolate brownie cookies topped with a fudge frosting and rainbow candies.

The cosmic cookies on a white plate.

Crumble-style cookies are the best kind of cookies! This version combines a large Crumbl style cookie with the childhood favorite Little Debbie’s cosmic brownies. The fudge frosting sets this chocolate cookie recipe over the top!

A couple of other fun cosmic brownie recipes: Cosmic Brownie Cake and Cosmic Brownie Donuts.

Why You’ll Love These Cosmic Brownie Cookies

  • Incredibly Fudgy – Staring with a fudgy brownie cookies then topped with a fudge frosting makes this cookie recipe a fudge lovers dream!
  • Quick and Easy – This is a very simple recipe with only 15 minutes of baking time.
  • Loved by Everyone – We make these often and colorful candies make these a favorite for serving at parties. Kids and adults absolutely love them and always want the recipe.

What You’ll Need

Just a few staple ingredients other than the rainbow coated chocolate chips (which are found in most grocery stores. Get the full amounts in the recipe box below.

  • Sugars – Granulated sugar and light brown sugar.
  • Butter and Eggs
  • Light Corn Syrup – Just a small amount to add a more chewy, fudgy texture.
  • Cocoa Powder – I used unsweetened cocoa powder, but dark cocoa powder can also be used.
  • Other Dry Ingredients – All-purpose flour, corn starch, baking soda and salt.
  • Heavy Cream and Semi-Sweet Chocolate Chips – for the fudgy chocolate ganache.
  • Rainbow Coated Chocolate Chips – This is sold in most grocery stores. However, If you can not find rainbow coated chocolate chips, you can use regular semi sweet chocolate chips or mini M&Ms.
Cosmic Brownie Cookies on a plate

How to Make Cosmic Brownie Cookies

  • Set the oven to 350 degrees and use parchment paper to line a cookie sheet. In a large bowl, add the flour, cocoa, cornstarch, baking soda, and salt and whisk to combine.
  • Add the butter, white, and light brown sugar into an electric mixer and beat to combine until light in color and fluffy. Pour in the vanilla, 3 eggs, and corn syrup and combine until fully incorporated. Combine until the mixture forms and soft cookie dough.
  • Form the cookies using a large ice cream scooper and arrange them 2-inches apart on a cookie sheet. Flatten the dough using your hands and bake for 15-17 minutes in a 350-degree oven.

Fudge Frosting

  • In a small pot, bring the heavy cream to a simmer. In a small bowl, add in the chocolate chips and add the heated cream on top. Combine using a whisk until smooth.
  • Use a spoon to add the ganache onto each cookie and top with rainbow-coated chocolate chips right away.

Storing

When stored properly these cookies can last up to 3 months. Place the cookies in an airtight container for the best storage method. Storing in the fridge will make them last 2 weeks whereas the freezer can make your recipe last even longer.

Cosmic Brownie Cookies
Cosmic Brownie Cookies feature
5 from 2 votes

Cosmic Brownie Cookies

Cosmic Brownie Cookies are a fun twist on the popular cosmic brownies Little Debbie treat! Chewy chocolate brownie cookies topped with a fudge frosting and rainbow candies.
Servings: 12 cookies
Prep: 30 minutes
Cook: 15 minutes
Total: 45 minutes

Ingredients
  

Brownie Cookies

Fudge Frosting

Instructions

  • Preheat the oven to 350 degrees. Line the cookie sheets with parchment paper.
  • Combine flour, cocoa, cornstarch, baking soda, and salt in a large bowl. Whisk to mix. Set aside.
  • In a large mixing bowl with an electric mixer, cream together the butter, white sugar, light brown sugar until fluffy.
  • Mix in the eggs, vanilla extract, and corn syrup.
  • Gradually add in the flour mixture until a soft cookie dough begins to form.
  • Divide the dough into 12 portions and then roll each portion into a ball using your hands.
  • Place the cookie balls on a cookie sheet about 2 inches apart.
  • Flatten the cookie balls into circles using the palm of your hand or the bottom of a glass (not flat, but slightly).
  • Bake for 15-17 minutes until the cookies start to crack and the centers are set (not wet). Let cool before frosting.

Make the Fudge Frosting

  • In a small glass bowl, microwave the heavy cream for 1 1/2 minutes or until it is boiling (or add the cream into a small pot and bring to a simmer).
  • Stir in the chocolate chips and let site for a few minutes. Then stir until completely melted and smooth.
  • Spoon the frosting on each cooled cookie and immediately sprinkle the rainbow coated chocolate chips on top.

Last Step:

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Notes

For smaller cookies – roll 24 cookies and cut the baking time down to 10-12 minutes.

Nutrition

Serving: 12g | Calories: 678kcal | Carbohydrates: 80g | Protein: 9g | Fat: 23g | Saturated Fat: 11g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 119mg | Sodium: 539mg | Potassium: 373mg | Fiber: 6g | Sugar: 39g | Vitamin A: 919IU | Vitamin C: 0.1mg | Calcium: 79mg | Iron: 5mg

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2 comments on “Cosmic Brownie Cookies”

  1. Jennifer Swaw

    Hi. I found your recipe and I am super excited to give this recipe a try. In the very beginning you say hot cocoa mix but in the recipe ingredients it says cocoa powder. Do you use hot cocoa mix or cocoa powder??