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These Cosmic Brownie Cookies are everything you love about classic cosmic brownies, turned into soft, fudgy cookies. This Cosmic Brownie Cookies recipe is quick, simple, and packed with chocolate flavor.
If you love chocolate cookies and crave that rich, dense texture, these fudgy cookies deliver. Whether you want to make chocolate cookies for a party or just a weeknight treat, this recipe is a guaranteed win.
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❤️ Why You’ll Love This Recipe
- Why You’ll Love This Recipe
- Super easy shortcut using brownie mix
- Rich, fudgy cookies with soft centers
- Topped with smooth chocolate ganache
- Perfect for parties, bake sales, or after-school treats
- Tastes like a homemade version of a nostalgic favorite
Key Ingredients
Brownie mix
This is the shortcut that makes these Cosmic Brownie Cookies quick and easy while still delivering that rich, fudgy texture.
All-purpose flour
Adding a little flour helps the cookies hold their shape and keeps them from spreading too much.
Semi-sweet chocolate chips
Used to make the ganache, these bring a deep chocolate flavor that balances the sweetness.
Heavy cream
Essential for a smooth ganache that sets properly on top of the cookies.
Candy-coated chocolate chips
These give the cookies that signature cosmic brownie look and fun crunch.
Ingredients & Substitutions
- fudge brownie mix (18 oz.) – no substitution recommended
- all-purpose flour – no substitution recommended
- canola oil – substitute with vegetable oil
- large eggs – no substitution recommended
- semi-sweet chocolate chips – substitute with milk or dark chocolate chips
- heavy cream – no substitution recommended
- candy-coated chocolate chips – substitute with mini M&M’s or sprinkles
Variations
- Use milk chocolate chips for a sweeter ganache
- Swap candy-coated chips with mini M&M’s or sprinkles
- Add a pinch of espresso powder to enhance the chocolate flavor
- Mix in extra chocolate chips for even richer chocolate cookies
Tips for Best Results
- Do not overbake – the centers should stay soft and fudgy
- Flatten the dough slightly to help cookies bake evenly
- Use a cookie scoop for a uniform size
- Add toppings while the ganache is still wet, so they stick
FAQs
Yes, you can bake the cookies ahead and add the ganache the day you plan to serve them.
Make sure to add the flour and avoid overmixing the dough.
Yes, freeze the cookies without ganache, then thaw and frost later.
Yes, but results may vary slightly depending on the brand.
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How to Store Cosmic Brownie Cookies
Store Cosmic Brownie Cookies in an airtight container at room temperature for up to 2 days. After that, refrigerate them to keep the ganache fresh. Let cookies sit at room temperature before serving for the best texture.
How to Make Cosmic Brownie Cookies
These Cosmic Brownie Cookies come together quickly with simple steps and minimal prep. You’ll mix the dough, bake until just set, then finish with a rich ganache topping.
Quick steps:
- Mix brownie mix, flour, oil, and eggs
- Scoop and lightly flatten the dough
- Bake until edges are set
- Make ganache and spread over cookies
- Add candy-coated chocolate chips and let them set
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Cosmic Brownie Cookies
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Equipment
- wire rack
Ingredients
- 1 box fudge brownie mix, (18 oz.)
- 2 tablespoons all-purpose flour
- ¼ cup canola oil
- 2 large eggs
- 1 cup semi-sweet chocolate chips
- ¼ cup heavy cream
- ¼ cup candy-coated chocolate chips
Instructions
- Preheat oven to 350°F. Line two baking sheets with parchment paper.
- In a medium bowl, whisk together brownie mix and flour.1 box fudge brownie mix, 2 tablespoons all-purpose flour
- Add oil and eggs. Mix until fully combined and no dry streaks remain. Dough will be thick.¼ cup canola oil, 2 large eggs
- Scoop dough onto prepared baking sheets using a large cookie scoop, spacing about 1½ inches apart.
- Lightly flatten each dough ball with your hand to remove the dome shape.
- Bake for 10-13 minutes, or until edges are set.
- Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
- To make the ganache, add chocolate chips and heavy cream to a microwave-safe bowl. Microwave for 60 seconds.1 cup semi-sweet chocolate chips, ¼ cup heavy cream
- Let sit for 2 minutes, then whisk until smooth.
- Spread ganache over cooled cookies. Immediately sprinkle candy-coated chocolate chips on top.¼ cup candy-coated chocolate chips
- Let ganache set before serving.
Notes
🥡 STORAGE
- Store in an airtight container at room temperature for up to 2 days
- Refrigerate after 2 days to keep the ganache from spoiling
♨️ REHEATING
- Microwave for 5-8 seconds to slightly soften the cookie
- Let it sit at room temperature for 10-15 minutes for the best texture
❄️ FREEZING
- Freeze unfrosted cookies in an airtight container for up to 2 months
- Thaw at room temperature, then add ganache before serving
- Freezing frosted cookies is not recommended, as the ganache texture may change
💡 TIPS FOR BEST RESULTS
- Do not overbake – cookies should have set edges and soft centers
- Add flour to help prevent spreading and keep cookies fudgy
- Use a cookie scoop for even baking
- Add toppings while the ganache is still wet, so they stick
🍳 ALTERNATE COOKING METHODS
- Air fryer – cook at 325°F for 6-8 minutes in small batches
- Toaster oven – bake at 350°F for 10-12 minutes
♻️ LEFTOVERS
- Chop and use as an ice cream topping
- Crumble into milkshakes or parfaits
📝 NOTES
- Heavy cream is key to a properly setting ganache
- Half and half will result in a softer, runnier topping
- Mini M&M’s or sprinkles work well if candy-coated chips are unavailable
- Slight underbaking gives the best fudgy texture
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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