Description
These homemade Cosmic Brownies are ultra-fudgy, rich, and topped with a smooth chocolate ganache and rainbow sprinkles. A perfect copycat version of the classic treat!
Ingredients
Units
Scale
For the Brownies
- 1 cup (2 sticks) unsalted butter, melted
- 1 cup granulated sugar
- 3/4 cup light brown sugar, packed
- 3 large eggs
- 1 tablespoon vanilla extract
- 1 cup all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 1/2 teaspoon salt
- 1/2 teaspoon baking powder
For the Ganache Topping
- 1 cup heavy cream
- 1 1/2 cups semisweet chocolate chips
- 1 teaspoon vanilla extract
For Decoration
- 1/4 cup rainbow candy-coated chocolate chips (like mini M&Ms)
Instructions
Make the Brownies
- Preheat your oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper or grease it lightly.
- In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth.
- Add the eggs and vanilla extract, mixing until fully combined.
- In a separate bowl, whisk together the flour, cocoa powder, salt, and baking powder.
- Gradually fold the dry ingredients into the wet ingredients until just combined. Do not overmix.
- Pour the brownie batter into the prepared baking dish and smooth the top.
- Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Let the brownies cool completely before adding the ganache.
Make the Ganache
- In a small saucepan, heat the heavy cream over medium heat until it just starts to simmer. Do not boil.
- Remove from heat and pour over the chocolate chips in a heatproof bowl. Let sit for 2 minutes, then stir until smooth and glossy.
- Stir in the vanilla extract.
Assemble the Cosmic Brownies
- Pour the ganache evenly over the cooled brownies and smooth with a spatula.
- Immediately sprinkle the rainbow candy-coated chocolate chips over the top.
- Let the ganache set at room temperature for about 1 hour, or chill in the fridge for a faster set.
- Slice into squares and enjoy!
Storage
- Store in an airtight container at room temperature for 3 days or in the fridge for up to 1 week.
Notes
- For an even fudgier texture, slightly underbake the brownies and let them cool completely before adding the ganache.
- You can swap semisweet chocolate for dark chocolate in the ganache for a richer flavor.
- Use a hot knife to slice clean brownie squares.