Easy Copycat for How to Make Cosmic Brownie Cookies Recipe


Try this nostalgic Cosmic Brownie Cookies recipe! A copycat of the classic treat, these fudgy, chewy cookies are packed with chocolate and colorful sprinkles.

How to make homemade cosmic brownie cookies recipe and step by step directions

If you love the chewy, chocolatey goodness of Cosmic Brownies, you’re going to love these Cosmic Brownie Cookies! They have the same rich flavor, a soft and fudgy texture, and a smooth chocolate frosting topping loaded with colorful sprinkles. These cookies are perfect for birthdays, bake sales, or just a sweet treat at home.

Lined sheet pan with finished cosmic brownie cookies on top

What Are Cosmic Brownie Cookies?

Cosmic style brownie cookies take inspiration from the popular Little Debbie Cosmic Brownies. They combine the deep, rich taste of brownies with the soft texture of a chewy brownie cookies. Topped with a creamy chocolate ganache and vibrant candy sprinkles, these cookies bring a fun twist to a classic treat in cookie form.

They are easy to make and perfect for chocolate lovers. Whether you bake them for a special occasion or just to satisfy your sweet tooth, they will quickly become a favorite!

Cosmic cookies on a sheet of parchment paper

Ingredients You’ll Need

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Here are the ingredients you will need, most can be found at your local grocery store even the rainbow chips (check the baking aisle), but you can grab those online too if you need!

Cookie Dough:

  • 1 2/3 cups all-purpose flour
  • 1 cup unsweetened dark cocoa powder
  • 2 teaspoons cornstarch
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup butter, melted
  • 1 ¼ cup granulated sugar
  • ¾ cup brown sugar, packed
  • 2 teaspoons vanilla extract
  • 2 large eggs

Topping:

Ingredients for making cosmic brownie cookies

Optional Equipment that I Use: I love to use a cookie scoop for uniform sized cookies, but you can use a tablespoon to get similar results. I usually line my cookie sheet with a silpat mat too.

How to Make Copycat Cosmic Brownie Cookies

Step 1: Prepare the Dry Ingredients

In a medium bowl, whisk together the flour, dark cocoa powder, cornstarch, baking soda, and salt. Set aside.

Whisking dry ingredients in a mixing bowl for cosmic cookies

Step 2: Mix the Wet Ingredients

In a large mixing bowl, use an electric mixer to beat the melted butter, granulated sugar, brown sugar, and vanilla until fully combined.

Mixing wet ingredients for cookie dough

Step 3: Add the Eggs

Mix in the eggs at low speed until just incorporated. Avoid overmixing.

Adding wet ingredients to dry

Step 4: Combine Wet and Dry Ingredients

Gradually add the dry mixture to the wet mixture, mixing on low speed until a soft dough forms.

Step 5: Form and Chill the Dough

Line baking sheets with parchment paper. Roll the dough into 1-inch cookie dough balls and place them 2 inches apart on the baking sheets. Refrigerate for 30 minutes.

Step 6: Bake the Cookies

Preheat the oven to 350°F. Once chilled, bake the cookies for 9-10 minutes, until set around the edges. Let them cool on the baking sheet tray for 5 minutes before transferring to a wire rack.

Step 7: Make the Chocolate Ganache

In a microwave-safe bowl, heat the semi-sweet chocolate chips and heavy cream for 30 seconds. Stir well, then microwave for another 20-30 seconds. Stir until smooth.

Step 8: Assemble the Cookies

Spoon the ganache onto the center of the top of each cookie, spreading it toward the edges. Sprinkle with Cosmic Brownie sprinkles while the ganache is still warm.

Step 9: Let the Cookies Set

Allow the smooth chocolate ganache to set before serving. Enjoy your Copycat Crumbl Cosmic Brownie Cookies!

Letting cookies set after adding frosting and rainbow sprinkles

Where to Take These Cookies

These cookies are great for:

  • Birthday parties – A hit with both kids and adults! Perfect for a nostalgic treat.
  • Bake sales – Eye-catching and delicious, they sell fast.
  • Holiday gatherings – Add a festive touch with themed sprinkles.
  • Lunchbox treats – A fun surprise for kids at school.
  • Potlucks and family events – Everyone will ask for the recipe!
Stack of cosmic brownie cookies

Variations to Try

Want to change things up? Try these ideas on the cosmic brownie cookie version for a different taste:

  • Use white chocolate ganache instead of dark for a creamy contrast.
  • Add a peanut butter drizzle for a chocolate-peanut butter combo.
  • Mix in mini chocolate chips for extra chocolate flavor.
  • Swap the sprinkles for seasonal ones to match holidays.
  • Use different cocoa powder – Regular cocoa works if you don’t have dark.
tops of decorated cosmic brownie cookies ready to eat

Storing and Making Ahead

These cosmic cookies store well! Here’s how:

  • Room temperature: Store in an airtight container for up to 5 days.
  • Refrigerator: Keep for up to a week in a sealed container.
  • Freezer: Freeze baked cookies (without ganache) for up to 3 months. Thaw before adding the topping to the decadent chocolate cookies.
  • Make-ahead dough: Prepare the dough and refrigerate for up to 3 days before baking.
Overhead view of a stack of cosmic brownie copycat cookies

Common Questions About Cosmic Brownie Cookies

Can I use regular cocoa powder instead of dark?

Yes! The flavor will be slightly different, but they will still be delicious.

Do I have to chill the dough?

Yes, chilling prevents spreading and keeps the cookies thick and fudgy.

How to make cosmic brownie copycat little debbie cookies

Can I use milk chocolate instead of semi-sweet?

Absolutely! If you prefer a sweeter ganache, milk chocolate is a great choice.

What if I don’t have an electric mixer?

You can mix by hand, but it will take more effort to combine the ingredients well.

How can I make them extra chewy?

Slightly underbake them and let them finish setting as they cool.

Cosmic Brownie Cookies

How to make a copycat of classic Little Debbie Cosmic Brownie Cupcakes in a giant cookie form.
Prep Time30 minutes
Cook Time10 minutes
Chill Time30 minutes
Total Time1 hour 10 minutes
Course: Dessert
Cuisine: American
Keyword: brownies, cookies, cookies recipe, Copycat Recipe, cosmic brownies
Servings: 18

Ingredients

Cookies:

  • 1 2/3 cups all-purpose flour
  • 1 cup unsweetened dark cocoa powder
  • 2 teaspoons cornstarch
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 1 cup butter melted
  • 1 ¼ cup granulated sugar
  • ¾ cup brown sugar packed
  • 2 teaspoons vanilla extract
  • 2 large eggs

Topping:

  • 8 ounces semi-sweet chocolate chips
  • ¾ cup heavy cream
  • Cosmic brownie sprinkles

Instructions

  • In a medium mixing bowl, whisk together the flour, dark cocoa powder, cornstarch, baking soda, and salt; set aside.
  • In a large mixing bowl, use an electric mixer to beat together the melted butter, granulated sugar, brown sugar, and vanilla until well combined.
    Mixing wet ingredients for cookie dough
  • Add the eggs and beat on low speed, just until incorporated.
  • Pour the dry mixture into the wet and mix on low speed until combined.
    Adding dry ingredients to wet slowly to make the dough
  • Line baking sheets with parchment paper. Roll the dough into 1-inch balls and place on the baking sheets, leaving 2 inches of space between each dough ball.
  • Place the cookie sheets of dough balls in the refrigerator to chill for 30 minutes.
  • While the dough is chilling, preheat the oven to 350 F.
  • Once the dough balls are finished chilling, bake at 350 F for 9-10 minutes until set around the edges. Remove from the oven and cool on the cookie sheets for 5 minutes then transfer to wire cooling racks.
    Baked cookies ready to add topping
  • Pour the semi-sweet chocolate chips and heavy cream into a microwave safe bowl and heat on high for 30 seconds. Stir well, then heat for another 20-30 seconds until the chocolate is melted. Continue to stir until fully combined and smooth.
  • Spoon the chocolate frosting onto the center of each cookie and spread out towards the edges.
  • Sprinkle each cookie with Cosmic Brownie sprinkles while chocolate frosting is still wet.

Conclusion & Call to Action

These Cosmic Brownie Cookies are a fun and delicious twist on a childhood favorite. With their rich chocolate flavor, gooey ganache, and colorful sprinkles, they are perfect for any occasion.

Up close of cosmic brownie cookies recipe on a pan

Try making them today! If you love this recipe, share it with friends or save it for later. Have questions or want more fun cookie ideas? Let us know in the comments!

More Fun Copycat Recipes to Try:

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Hi there!

I’m Emily, a mom and wife with a passion for crafting, celebrating holidays, and creating memorable moments. From Idaho to the world, The Benson Street is a treasure trove of easy, fun DIY projects, delightful printables, and delicious recipes. With over a decade of experience in blogging and a love for all things seasonal, I’m here to share my tips, ideas, and occasional mishaps. Join me in adding a dash of joy and creativity to every day! Read more…

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