Brace yourself for a cosmic trip down memory lane! Homemade cosmic brownies are here to take you back to your childhood, one fudgy bite at a time. Because let's be real, there's no better way to relive the good old days than with a sprinkle-studded treat that's out of this world!
Preheat the oven to 350 degrees fahrenheit. Grease a 9x13 pan and, if desired, line with parchment paper leaving a 1 inch overhang on both sides.
In a large bowl, melt the chocolate and butter together in 30 second intervals. Once fully melted, stir in the sugars and eggs.
In a medium bowl, sift together the salt, cornstarch, baking powder, cocoa powder, and flour. Add the dry ingredients to the wet and mix until combined.
Add the brownie batter to the prepared pan and smooth with a spatula. Bake for 40-45 minutes, until a toothpick comes out clean from the center.
Let the brownies cool completely.
Ganache
Gently heat the chocolate, butter, and cream in 20 second intervals in the microwave until steaming. Whisk together until smooth. Pour over cooled brownies and smooth over the top. Sprinkle rainbow chips or sprinkles over the ganache before it sets.
Chill in the fridge for at least an hour before serving.