Fudgy Cosmic Brownie Cookies Recipe
Introduction
These Fudgy Cosmic Brownie Cookies combine the rich, dense texture of a brownie with the fun, chewy charm of a cookie. Packed with chocolate chips and topped with colorful sprinkles, they’re a delightful treat perfect for any occasion.

Ingredients
- ½ cup unsalted butter (softened)
- ½ cup light brown sugar
- ¼ cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 2 tablespoons light corn syrup
- ¼ teaspoon baking soda
- ¼ teaspoon salt
- ½ cup dark cocoa powder (I use Hershey’s Special Dark)
- 1 ¼ cups all-purpose flour
- ¾ cup semi-sweet chocolate chips
- ¼ cup heavy cream
- Rainbow chip sprinkles
Instructions
- Step 1: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- Step 2: In a large bowl, cream together the softened butter, light brown sugar, and granulated sugar until smooth and fluffy.
- Step 3: Add the egg, vanilla extract, and light corn syrup to the butter mixture and beat until well combined.
- Step 4: In a separate bowl, whisk together the baking soda, salt, dark cocoa powder, and all-purpose flour.
- Step 5: Gradually mix the dry ingredients into the wet ingredients until just combined.
- Step 6: Stir in the semi-sweet chocolate chips and heavy cream to create a fudgy dough.
- Step 7: Drop tablespoon-sized portions of dough onto the prepared baking sheet, spacing them about 2 inches apart.
- Step 8: Sprinkle the tops generously with rainbow chip sprinkles.
- Step 9: Bake for 10-12 minutes, until the edges are set but the centers remain soft.
- Step 10: Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
Tips & Variations
- For extra fudginess, try adding a tablespoon of melted dark chocolate to the dough.
- Swap rainbow chip sprinkles with chopped nuts or mini marshmallows for different textures.
- If you prefer a chewier cookie, slightly underbake and allow them to finish setting as they cool.
Storage
Store the cookies in an airtight container at room temperature for up to 4 days. To keep them soft, place a slice of bread in the container, which helps maintain moisture. Reheat gently in the microwave for 10-15 seconds if desired.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular corn syrup instead of light corn syrup?
Yes, regular corn syrup can be used as a substitute. It helps keep the cookies moist and chewy.
Do these cookies freeze well?
Absolutely. Freeze the baked cookies in a sealed container or freezer bag for up to 3 months. Thaw at room temperature before enjoying.
PrintFudgy Cosmic Brownie Cookies Recipe
These Fudgy Cosmic Brownie Cookies combine the rich, intense flavor of dark cocoa brownie batter with the chewy texture of cookies and festive rainbow chip sprinkles. Loaded with chocolate chips and a hint of corn syrup for chewiness, these cookies deliver a deliciously fudgy and decadent treat perfect for any occasion.
- Prep Time: 15 minutes
- Cook Time: 12 minutes
- Total Time: 27 minutes
- Yield: About 18 cookies 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Wet Ingredients
- ½ cup unsalted butter, softened
- ½ cup light brown sugar
- ¼ cup granulated sugar
- 1 large egg
- 1 teaspoon vanilla extract
- 2 tablespoons light corn syrup
- ¼ cup heavy cream
Dry Ingredients
- ¼ teaspoon baking soda
- ¼ teaspoon salt
- ½ cup dark cocoa powder (Hershey’s Special Dark recommended)
- 1¼ cups all-purpose flour
Add-ins
- ¾ cup semi-sweet chocolate chips
- Rainbow chip sprinkles, for decorating
Instructions
- Prepare the butter and sugars: In a large mixing bowl, cream the softened unsalted butter together with the light brown sugar and granulated sugar until smooth, creamy, and well combined. This ensures a tender and chewy cookie base.
- Add egg and flavorings: Beat in the large egg, vanilla extract, and light corn syrup until the mixture is uniform and glossy, which will contribute to the fudge-like texture.
- Mix dry ingredients: In a separate bowl, whisk together the baking soda, salt, dark cocoa powder, and all-purpose flour. Sifting will help avoid lumps for a smooth batter.
- Combine wet and dry ingredients: Gradually incorporate the dry ingredients into the wet mixture, mixing just until no streaks remain to avoid overworking the dough and keeping cookies soft.
- Add chocolate chips and cream: Stir in the semi-sweet chocolate chips and heavy cream evenly to distribute the fudgy richness and extra moisture in the dough.
- Scoop cookies: Using a spoon or cookie scoop, drop portions of dough onto a prepared baking sheet lined with parchment paper, leaving enough space for spreading.
- Decorate with sprinkles: Generously sprinkle rainbow chip sprinkles on top of each cookie dough mound to give them a fun, cosmic appearance.
- Bake: Preheat the oven to 350°F (175°C). Bake the cookies for 10-12 minutes or until the edges are set but the centers remain soft and fudgy.
- Cool: Remove the cookies from the oven and allow them to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. This resting period lets the cookies firm up slightly while staying moist.
Notes
- For best fudgy texture, do not overbake the cookies. Slightly underbaked centers yield the best chew.
- Using light corn syrup helps the cookies stay moist and chewy.
- Dark cocoa powder intensifies the chocolate flavor; substitute with natural cocoa if unavailable but expect slightly different taste and color.
- Store cookies in an airtight container at room temperature for up to 4 days or freeze for longer storage.
Keywords: Fudgy brownies, chocolate chip cookies, cosmic brownies, rainbow sprinkles, fudgy cookies, chocolate cookies

