Gluten-Free Cosmic Brownie Cookies

Our Gluten-Free Cosmic Brownie Cookies recipe was MADE for chocolate lovers! These brownie cookies have a satisfying fudgy texture, packed with all the nostalgic flavor of a classic cosmic brownie.

If you’ve got a chocolate craving, you’re in the right place! These gluten-free brownie cookies are just what you’re looking for…

Ready to make a batch? Here’s what you need to get started…

Gather Your Ingredients

How To Make Gluten-Free Cosmic Brownie Cookies, Step By Step

As always, you can find the full recipe, with ingredient amounts, detailed instructions, and tips in the recipe card below.

Start The CookieS

1. Preheat & Prep. To start, preheat oven temperature to 350 degrees F. Line two cookie sheets with parchment paper and set aside.
2. Melt Butter & Chocolate. In a microwave-safe bowl, combine butter and 8 ounces chocolate chips. Melt in 15-20 second intervals on low heat, stirring in between each interval, until the chocolate is smooth and glossy. Set aside to cool slightly.
3. Whip Eggs, Sugars & Vanilla. In a large mixing bowl, combine brown sugar, granulated sugar, eggs, and vanilla. Use a hand mixer to beat the eggs mixture 2-3 minutes on medium speed, or until much lighter in color, doubled in volume, and the sugar is dissolved almost completely. (When you rub this mixture between your fingers, there should be almost NO grit. This is a critical step, so don’t rush it!)
4. Add Chocolate To Egg Mixture. Pour cooled melted chocolate mixture into the egg mixture and mix to combine.

5. Add Dry Ingredients. Then, add gluten-free flour, dark cocoa powder, baking powder, and salt to the wet ingredients, and mix until just combined. (At this point, the cookie dough should look and feel like thick brownie batter.)
6. Fold In Mini Chocolate Chips until evenly distributed in the cookie dough.
7. Scoop & Bake Cookies. Working in batches, use a medium cookie scoop to portion 6-8 cookies per baking sheet. (The dough balls should be 1.5 Tablespoons in size.) Make sure the cookies have plenty of room around them to spread! Bake cookies 9-11 minutes in the preheated oven, or until set on the outside and just a little shiny in the middle. (Mine are usually done at 10-10 1/2 minutes!) Repeat until all cookies are baked.
8. Cool Cookies Completely Before Frosting. Let the cookies cool 1-2 minutes on the baking sheet before transferring to a wire rack to finish cooling completely. Let all cookies cool completely before frosting and decorating.

Frost & Decorate The Cookies

9. Make Ganache. In a microwave-safe liquid measuring cup or small saucepan, heat cream until just boiling. Watch carefully, since cream can bubble over! Remove from the heat or set aside and add 6 ounces of chocolate chips and let this mixture sit 5-10 minutes WITHOUT stirring to let the chocolate melt. Then, stir in one direction 1-2 minutes, or until the chocolate is smooth and the ganache looks smooth and glossy. Let the ganache cool another 2-3 minutes before using to allow it to thicken slightly.
10. Working A Few at a Time, Frost Cookies. Working just a few cookies at a time, add 2-3 teaspoons of the ganache to the center of each cookie, then use an offset spatula to smooth the ganache into a circle. I like to leave a small border near the edge of the cookies so the ganache doesn’t spill over the sides.
11. Add Rainbow Sprinkles. Carefully add rainbow chip sprinkles on top of the ganache. Repeat this process, working a few cookies at a time, until all cookies are frosted and decorated. (You may have leftover ganache.)
12. Let Cookies Set. Then, let the cookies set. This can sometimes take a few hours at room temperature, but can be sped up by chilling the cookies, if desired.

FAQ + Tricks For The Best Cosmic Brownie Cookies

MEASURE FLOUR CORRECTLY! Adding even an extra Tablespoon or two of flour will drastically impact the spread of your cookies. Weigh the flour with a kitchen scale for best results, or use the scoop and level method to spoon flour into the measuring cup rather than scooping WITH the measuring cup, which packs too much flour into the recipe. 

For Flatter Cookies. If your cookies aren’t baking flat enough for your taste, you added too much flour, or you simply want a wider spread, you can gently pat down the cookie dough balls slightly with your fingertips before baking. 

Don’t Rush The Eggs & Sugar! Make sure to beat the eggs and sugar the full 2-3 minutes to properly dissolve the sugar. It’s the key to the shiny, crinkly tops we’re going for! 

Storing & Freezer Tips. Store leftover cookies in a a single layer in an airtight container 2-3 days at room temperature, or freeze in a single layer up to 2 months.

What Kind of Sprinkles Should I Use For Cosmic Brownie Cookies? Look for rainbow bit chips–candy-coated chocolate sprinkles that are like colorful mini chocolate chips. It can be hard to find brands that are gluten-free, but we love these gluten-free rainbow bit chips from Sweetapolita! Can’t find any? Try using rainbow quins or your favorite rainbow sprinkles (or even mini m&m’s!) instead.

More Fun Cookie Recipes To Try

Gluten-Free Monster Cookies

Gluten-Free Oatmeal Cream Pies

Gluten-Free Dirt Cake Cookies (Like Crumbl!)

Thin & Crispy Gluten-Free Chocolate Chip Cookies (Like Tate’s!)

Gluten-Free Cosmic Brownie Cookies

5 from 2 votes

Author: Emily Dixon, Sweets & Thank You

Our Gluten-Free Cosmic Brownie Cookies recipe was MADE for chocolate lovers! These brownie cookies have a satisfying fudgy texture, packed with all the nostalgic flavor of a classic cosmic brownie.

Prep Time: 35 minutes minutes

Cook Time: 25 minutes minutes

Cooling Time: 20 minutes minutes

Total Time: 1 hour hour 20 minutes minutes

Print Pin Rate

Servings: 20 -22 Cookies

Equipment

• 1 Medium Cookie Scoop (1 1/2 Tablespoons)
• 2 Cookie Sheets
• 2 Sheets Parchment Paper
• 1 Microwave-Safe Bowl
• 1 Large Mixing Bowl
• 1 Offset Spatula
• 1 Handheld Mixer (Can use stand mixer, if preferred)

Ingredients

For The Brownie Cookies

• 6 Tablespoons Butter (85 grams), cut into cubes
• 8 ounces Dark Chocolate Chips (1 1/3 cups, 226 grams)
• ½ cup Light Brown Sugar (100 grams)
• ⅓ cup Granulated Sugar (67 grams)
• 2 Large Eggs
• 1 teaspoon Vanilla Extract
• ⅓ cup Gluten-Free Measure-For-Measure Flour* (40 grams, weighed or scooped and leveled)
• ¼ cup Dutch-Processed Cocoa Powder (25 grams)
• ½ teaspoon Baking Powder
• ¼ teaspoon Kosher Salt
• ½ cup Mini Chocolate Chips (120 grams/4.2 oz)

For The Chocolate Ganache & Decoration

• 6 ounces Dark Chocolate Chips (1 cup, 170 grams)
• 1 cup Heavy Whipping Cream (8 oz, 237 ml)
• ¼ cup Rainbow Bit Sprinkles* (Gluten-Free!)

Instructions

For The Brownie Cookies

• Preheat & Prep. To start, preheat oven temperature to 350 degrees F. Line two baking sheets with parchment paper and set aside.
• Melt Butter & Chocolate. In a microwave-safe bowl, combine butter and 8 ounces chocolate chips. Melt in 15-20 second intervals on low heat, stirring in between each interval, until the chocolate is smooth and glossy. Set aside to cool slightly.
• Whip Eggs, Sugars & Vanilla. In a large mixing bowl, combine brown sugar, granulated sugar, eggs, and vanilla. Use a hand mixer to beat the eggs mixture 2-3 minutes on medium speed, or until much lighter in color, doubled in volume, and the sugar is dissolved almost completely. (When you rub this mixture between your fingers, there should be almost NO grit. This is a critical step, so don't rush it!)
• Add Chocolate To Egg Mixture. Pour cooled chocolate mixture into the egg mixture and mix to combine.
• Add Dry Ingredients. Then, add gluten-free flour, dark cocoa powder, baking powder, and salt and mix until just combined. (At this point, the cookie dough should look and feel like thick brownie batter.)
• Fold In Mini Chocolate Chips until evenly distributed in the cookie dough.
• Scoop & Bake Cookies. Working in batches, use a medium cookie scoop to portion 6-8 cookies per baking sheet. (The dough balls should be 1.5 Tablespoons in size.) Make sure the cookies have plenty of room around them to spread! Bake cookies 9-11 minutes, or until set on the outside and just a little shiny in the middle. (Mine are usually done at 10-10 1/2 minutes!) Repeat until all cookies are baked.
• Cool Cookies Completely Before Frosting. Let the cookies cool 1-2 minutes on the baking sheet before transferring to a wire rack to finish cooling completely. Let all cookies cool completely before frosting and decorating.

To Frost & Decorate The Cookies

• Make Ganache. In a microwave-safe liquid measuring cup or small saucepan, heat cream until just boiling. Watch carefully, since cream can bubble over! Remove from the heat or set aside and add 6 ounces of chocolate chips and let this mixture sit 5-10 minutes WITHOUT stirring to let the chocolate melt. Then, stir in one direction 1-2 minutes, or until the chocolate is smooth and the ganache looks smooth and glossy. Let the ganache cool another 2-3 minutes before using to allow it to thicken slightly.
• Working A Few at a Time, Frost Cookies. Working just a few cookies at a time, add 2-3 teaspoons of the ganache to the center of each cookie, then use an offset spatula to smooth the ganache into a circle. I like to leave a small border near the edge of the cookies so the ganache doesn't spill over the sides.
• Add Sprinkles. Carefully add rainbow chip sprinkles on top of the ganache. Repeat this process, working a few cookies at a time, until all cookies are frosted and decorated. (You may have leftover ganache.)
• Let Cookies Set. Then, let the cookies set. This can sometimes take a few hours at room temperature, but can be sped up by chilling the cookies, if desired.
• Serve & Store. Enjoy cookies once set. Store leftover cookies in a a single layer in an airtight container 2-3 days at room temperature, or freeze in a single layer up to 2 months.

Notes

• Gluten-Free Flour. We highly recommend King Arthur Measure-For-Measure Gluten-Free Flour for these cookies. If you use another 1:1 gluten-free flour blend, be SURE it contains xanthan gum or the cookies will not turn out properly. 
• MEASURE FLOUR CORRECTLY! Adding even an extra Tablespoon or two of flour will drastically impact the spread of your cookies. Weigh the flour with a kitchen scale for best results, or use the scoop and level method to spoon flour into the measuring cup rather than scooping WITH the measuring cup, which packs too much flour into the recipe. 
• For Flatter Cookies. If your cookies aren’t baking flat enough for your taste, or you simply want a wider spread, you can gently pat down the cookie dough balls slightly with your fingertips before baking. 
• Don’t Rush The Eggs & Sugar! Make sure to beat the eggs and sugar the full 2-3 minutes to properly dissolve the sugar. It’s the key to the shiny, crinkly tops we’re going for! 
• Cocoa Powder. Be sure to use Dutch process cocoa powder sometimes labeled dark cocoa powder or alkalized cocoa powder for this recipe. Regular cocoa powder (natural cocoa powder) will have too weak a flavor. 

Video

Course: Cookies, Dessert

Cuisine: American

Diet: Gluten Free

Keyword: brownie cookies, cosmic brownie cookies, cosmic cookies

Find the recipe:

sweetsandthankyou.com/cosmic-brownie-cookies/