Dense, fudgy brownies with a thick, creamy chocolate ganache topping.
These Homemade Cosmic Brownies bring back the nostalgic joy of your favorite lunchbox treat with a rich, fudgy texture and a thick chocolate ganache topping.
Why you'll want it now, Indulge in a nostalgic treat with a rich, fudgy center and a smooth chocolate ganache topped with colorful sprinkles.
Why this recipe works
The secret to achieving that classic cosmic brownie texture is using a combination of cocoa powder and melted chocolate, which results in a dense, fudgy brownie. The thick ganache layer on top is made creamy with a touch of heavy cream, creating the perfect contrast to the chewy base.
Equipment
8 x 8 in (20 x 20 cm) baking pan
parchment paper
mixing bowls
whisk
rubber spatula
saucepan
spoon
How to make it
Preheat your oven to 350°F (175°C). Line an 8 x 8 in (20 x 20 cm) baking pan with parchment paper, leaving some overhang for easy removal.
In a large mixing bowl, whisk together the melted butter and granulated sugar until smooth.
Add the eggs and vanilla extract, whisking until fully incorporated.
Sift in the cocoa powder, flour, salt, and baking powder. Gently fold the dry ingredients into the wet ingredients using a rubber spatula until just combined.
Pour the batter into the prepared baking pan, spreading it evenly with the spatula.
Bake in the preheated oven for 25 minutes, or until the edges are set and the center no longer jiggles.
While the brownies cool, prepare the ganache by heating the heavy cream in a small saucepan over medium heat until it begins to simmer. Remove from heat and pour over the semisweet chocolate chips in a heatproof bowl. Let it sit for 2 minutes, then stir until smooth and glossy.
Once the brownies have cooled, pour the ganache over the top, spreading it evenly with a spoon.
Sprinkle the rainbow candy-coated chocolate chips or sprinkles evenly over the ganache.
Refrigerate the brownies for at least 1 hour to set the ganache before slicing into 12 equal squares.
Enjoy these Homemade Cosmic Brownies as a sweet reminder of your favorite childhood treat. They're sure to bring a smile to anyone's face!
How you'll know it's ready
The brownies are ready when the edges are set and the center no longer jiggles.
Convection oven? (and if you don't have one)
This recipe is perfect for standard ovens at the temperature listed. If using a convection oven, reduce the temperature by 25°F and check a few minutes early, as convection ovens bake faster.
Frosting, filling & glaze notes
The ganache should be smooth and glossy, spreading easily over the cooled brownies.
That soft, gooey texture up close.
Troubleshooting
If the brownies are too dry, reduce the baking time slightly.
For a smoother ganache, ensure the chocolate chips are fully melted before spreading.
If the ganache is too runny, let it cool slightly before pouring over the brownies.
Storage
Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
Make ahead
Brownies can be made a day in advance and stored in the refrigerator. Allow them to come to room temperature before serving for the best texture.
Variations
Add a pinch of espresso powder to the brownie batter for a mocha twist.
Use dark chocolate chips in the ganache for a richer flavor.
Top with chopped nuts instead of sprinkles for a crunchy finish.
Frequently asked questions
Can I freeze these brownies?
Yes, wrap each brownie tightly in plastic wrap and place in a freezer-safe container for up to 3 months. Thaw at room temperature before serving.
How can I make these brownies gluten-free?
Substitute the all-purpose flour with a gluten-free flour blend, ensuring it includes xanthan gum for structure.
Can I use milk chocolate instead of semisweet for the ganache?
Yes, but the ganache will be sweeter. Adjust the sugar in the brownie base if desired.
Why is my ganache not setting?
Ensure the ganache is cooled completely before slicing. If it's still runny, chill longer or check the cream-to-chocolate ratio.
This homemade recipe is inspired by nostalgic snack-style desserts and is not affiliated with any brand.
Nutrition Facts
Per serving: 1 brownie (75 g)
Calories290
Total Fat15 g
Saturated Fat9 g
Cholesterol55 mg
Sodium75 mg
Total Carbohydrate36 g
Dietary Fiber2 g
Total Sugars26 g
Protein3 g
Nutrition information is estimated based on the ingredients used and may vary depending on brands and exact measurements.
Recipe from softsweetdough.com · Soft, sweet desserts worth every bite.
