Cosmic Brownies That Take You Back to Childhood
Let’s be real—Cosmic Brownies aren’t just brownies. They’re a core memory. That fudgy, chewy center topped with a glossy chocolate ganache and those rainbow candy-coated chips? Instant nostalgia. Whether you loved pulling them out of your lunchbox or sneaking them at the grocery store checkout, we’re bringing that magic back—homemade and better than ever.
Why You’ll Fall in Love with These Brownies
These brownies are dense, rich, and unapologetically chocolatey. They’ve got that signature chewy bite, but since they’re homemade, they’re also way more flavorful and fudgy. And the ganache? Smooth, shiny, and melts in your mouth. It’s like your childhood favorite just got a glow-up.
Ingredients You’ll Need
For the Brownie Base:
- 1 cup unsalted butter, melted
- 1 cup granulated sugar
- 1 cup light brown sugar
- 4 large eggs
- 1 tablespoon vanilla extract
- 1 cup unsweetened cocoa powder
- 1 cup all-purpose flour
- ½ teaspoon salt
For the Ganache:
- 1 cup semi-sweet chocolate chips
- ½ cup heavy cream
- 1 tablespoon butter (for extra gloss)
For the Topping:
- Rainbow chocolate candy chips or mini M&M’s
Step-by-Step: How to Make Cosmic Brownies
1. Prep the Pan
Line a 9×13 inch baking pan with parchment paper and preheat your oven to 350°F (175°C).
2. Make the Brownie Batter
In a large bowl, whisk together melted butter, granulated sugar, and brown sugar. Add eggs and vanilla, mixing until smooth and creamy.
Sift in the cocoa powder, flour, and salt. Fold gently until just combined—don’t overmix!
3. Bake
Pour the batter into your prepared pan and smooth out the top. Bake for 22–26 minutes, or until a toothpick comes out with moist crumbs (not wet batter). Let cool completely in the pan.
4. Make the Ganache
In a heatproof bowl, microwave the heavy cream until just steaming. Pour it over the chocolate chips and butter. Let sit 1–2 minutes, then stir until silky smooth.
5. Top and Chill
Pour the ganache over the cooled brownies and spread evenly. Immediately sprinkle your rainbow chips on top. Chill in the fridge for 1 hour to set before slicing.
6. Slice and Serve
Use a sharp knife to cut clean edges. Wipe between slices for that perfect bakery-style look.
Tips for the Best Cosmic Brownies Ever
- Don’t skip the chill time: It helps the ganache firm up and gives that classic dense bite.
- Use Dutch-processed cocoa for a richer chocolate flavor.
- Want extra chew? Add an extra egg yolk to the batter!
Final Thoughts
These homemade Cosmic Brownies are everything you remember—but with a homemade richness that makes them irresistible. Whether you’re baking for nostalgia or just need a good chocolate fix, this is your go-to recipe for sweet, chewy bliss.
Stick around—every visit tastes better than the last at The Buttered Bliss.
