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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.
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!
Another fun cosmic brownie recipe is our 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.
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.
More Brownie Cookie Recipes
- Brownie Mix Cookies
- Reese’s Stuffed Brookie Cups
- Buckeye Brownie Cookies
- Oreo Stuffed Cookies
- Chocolate Chip Cookie Brownie Bars
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
Ingredients
Brownie Cookies
- 1 ½ cups butter room temperature
- 1 ½ cups light brown sugar packed
- ½ cup white granulated sugar
- 3 large eggs
- 2 Tablespoons light corn syrup
- 1 Tablespoon pure vanilla extract
- 3 ¾ cups all-purpose flour
- 1 cup cocoa powder
- 1 Tablespoon cornstarch
- 2 teaspoons baking soda
- 1 teaspoon Kosher salt
Fudge Frosting
- ⅔ cup heavy cream
- 2 cups semi-sweet chocolate chips
- ⅓ cup rainbow coated chocolate chips
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:
Please leave a rating and comment letting us know how you liked this recipe! This helps our business to thrive and continue providing free, high-quality recipes for you.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”
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??
Hey Jennifer, it’s cocoa powder. I’ve updated the post. Thanks!