Cosmic Brownie Cookies Recipe
Introduction
Cosmic Brownie Cookies are a decadent treat combining the rich, fudgy flavor of brownies with the chewy delight of cookies. Topped with a smooth chocolate ganache and colorful rainbow candy chips, these cookies are sure to brighten up any dessert table.

Ingredients
- 2 cups plus 2 Tbsp flour (270 g)
- ½ cup plus 2 Tbsp Dutch processed cocoa powder (67 g)
- ½ tsp espresso powder (optional)
- ½ tsp baking soda
- ½ tsp baking powder
- ½ tsp sea salt (or ¼ tsp salt if using salted butter)
- 1 cup salted butter (227 g), room temperature
- 1 cup white sugar (200 g)
- ½ cup light brown sugar (110 g)
- 2 large eggs, room temperature
- 1 tsp vanilla extract
- 4 oz dark or semi-sweet chocolate
- ⅓ cup heavy whipping cream
- Rainbow candy coated mini chips (for topping)
Instructions
- Step 1: Preheat the oven to 350°F (175°C).
- Step 2: In a medium bowl, whisk together the flour, espresso powder, cocoa powder, salt, baking soda, and baking powder.
- Step 3: In a separate bowl or stand mixer, beat the butter, white sugar, and brown sugar until light and fluffy, about 3-4 minutes. Add the eggs and vanilla extract, and mix until combined.
- Step 4: Gradually add the flour mixture in thirds, mixing on low speed just until combined. Avoid overmixing.
- Step 5: Use a medium cookie scoop to portion the dough and roll into balls. Place them 2 inches apart on parchment-lined baking sheets.
- Step 6: Bake for 7-10 minutes, until edges are set and tops are puffed (around 8 minutes is ideal).
- Step 7: Remove cookies from oven and optionally use a biscuit or cookie cutter to gently shape each cookie while warm. Let cool for several minutes, then transfer to a wire rack to cool completely.
- Step 8: For the ganache, chop the chocolate and place in a small bowl. Heat the heavy cream in 20-second intervals until hot but not boiling (about 40 seconds total).
- Step 9: Pour the hot cream over the chocolate and let sit for a few minutes. Stir until smooth. If needed, microwave for an additional 5-10 seconds and stir again.
- Step 10: Spoon about 1 teaspoon of ganache onto each cooled cookie. Top immediately with rainbow candy chips.
Tips & Variations
- Use high-quality baking chocolate for a richer ganache, or chocolate chips for convenience.
- Espresso powder enhances the chocolate flavor but can be omitted if preferred.
- For a dairy-free version, substitute butter and cream with plant-based alternatives.
- Double the ganache ingredients for a thicker chocolate topping.
- To keep cookies soft longer, store in an airtight container with a slice of bread.
Storage
Store cooled cookies in an airtight container at room temperature for up to 3 days. For longer storage, keep them in the refrigerator for up to a week. Reheat briefly in the microwave to soften the ganache and bring back a fresh-baked feel.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use regular cocoa powder instead of Dutch processed?
Yes, but Dutch processed cocoa has a milder, less acidic flavor that complements these cookies better. Using regular cocoa may slightly alter the taste and texture.
Why are my cookies spreading too much?
Make sure your butter is at room temperature but not too soft or melted. Also, chilling the dough for 15-30 minutes before baking can help cookies hold their shape better.
PrintCosmic Brownie Cookies Recipe
Delight in these Cosmic Brownie Cookies featuring a rich chocolate base combined with a smooth dark chocolate ganache topping and colorful rainbow candy-coated mini chips. Perfectly chewy with a puffy top and a hint of espresso powder for depth, these cookies deliver an irresistible blend of textures and flavors.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Total Time: 40 minutes
- Yield: Approximately 24 cookies 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Dry Ingredients
- 2 cups plus 2 Tbsp flour (270 g)
- ½ cup plus 2 Tbsp dutch processed cocoa powder (67 g)
- ½ tsp espresso powder (optional)
- ½ tsp baking soda
- ½ tsp baking powder
- ½ tsp sea salt (or ¼ tsp salt if using salted butter)
Wet Ingredients
- 1 cup salted butter (227 g), room temperature
- 1 cup white sugar (200 g)
- ½ cup light brown sugar (110 g)
- 2 large eggs, room temperature
- 1 tsp vanilla extract
Ganache
- 4 oz dark or semi-sweet chocolate
- ⅓ cup heavy whipping cream
Topping
- Rainbow candy-coated mini chips
Instructions
- Preheat Oven: Set your oven to 350°F (175°C) to prepare it for baking the cookies.
- Mix Dry Ingredients: In a medium bowl, whisk together the flour, espresso powder, cocoa powder, sea salt, baking soda, and baking powder until evenly combined.
- Cream Butter and Sugars: In a separate large bowl or stand mixer, beat the room temperature butter, white sugar, and brown sugar on medium speed for 3-4 minutes until the mixture is light and fluffy.
- Add Eggs and Vanilla: Incorporate the eggs and vanilla extract into the creamed butter and sugars, mixing until well combined.
- Combine with Dry Ingredients: Add one-third of the dry ingredient mixture at a time to the wet ingredients, mixing on low speed to avoid overmixing until just combined.
- Shape Cookies: Use a medium cookie scoop to portion dough and roll into balls. Arrange them 2 inches apart on parchment-lined baking sheets.
- Bake: Bake the cookies for 7-10 minutes or until the edges are set and tops are puffed; about 8 minutes is optimal for a chewy center.
- Optional Shaping: After removing from the oven, optionally press each cookie gently into a biscuit or cookie cutter to create uniform shapes. Let cool for several minutes on the baking sheet.
- Transfer to Rack to Cool: Move cookies to a wire rack to cool completely before decorating.
- Prepare Ganache: Chop the dark chocolate finely and place it in a small bowl. Heat the heavy cream in short increments (about 40 seconds total) until hot but not boiling.
- Make Ganache: Pour the hot cream over the chopped chocolate and let sit for a few minutes, then stir until smooth. If needed, microwave in 5-10 second bursts and stir until fully melted.
- Top Cookies: Spoon roughly one teaspoon of ganache onto each cooled cookie and immediately sprinkle rainbow candy-coated mini chips over the ganache to decorate.
Notes
- For best results, use high-quality baking chocolate for the ganache, though chips will also work.
- If concerned about saltiness, reduce salt to ¼ tsp when using salted butter.
- You can double the recipe easily by doubling all ingredient quantities.
- Allow cookies to cool completely before adding ganache to prevent melting.
- Using the biscuit cutter post-baking is optional but creates a neat presentation.
Keywords: Cosmic Brownie Cookies, chocolate cookies, chocolate ganache, rainbow candy cookies, chewy chocolate cookies, dessert recipes

