Cosmic Brownies Recipe

Make the Brownies - Gather the ingredients.

Make the Brownies - Position a rack in the center of the oven and heat the oven to 350 F. Grease the bottom and sides of an 8 x 8-inch baking pan with oil. Dust the pan with about 1 tablespoon flour; tilt pan and tap until the bottom and sides of the pan are coated in flour, then tap out any excess. Set the pan aside.

Make the Brownies - Whisk the melted butter, vegetable oil, and the sugars in a large bowl until well combined.

Make the Brownies - Add the whole eggs, egg yolk, corn syrup, and vanilla. Whisk until sugar granules are dissolved and the mixture is creamy, about 5 minutes. Alternatively, use an electric hand mixer.

Make the Brownies - Combine the cocoa powder, flour, and salt in a small bowl.

Make the Brownies - Whisk the dry mixture to the wet ingredients, until just combined and no visible streaks of dry ingredients remain.

Make the Brownies - Transfer the brownie batter to the prepared baking pan. Use a butter knife or offset spatula to spread the batter into an even layer.

Make the Brownies - Bake the brownies until the top is shiny, the brownies are set, and a toothpick inserted in the center comes out mostly clean (a few crumbs or steaks of batter is okay), 20 to 25 minutes.

Make the Brownies - Let brownies cool in the pan for 15 minutes. Meanwhile, set a rack over a parchment-lined rimmed baking sheet.

Make the Brownies - Run an offset spatula or butter knife around the pan to release brownies from the edges. Invert brownies onto the prepared rack and let cool completely, about 45 minutes.

Make the Ganache and Garnish - Gather the ingredients.

Make the Ganache and Garnish - Heat the cream in a medium microwave-proof bowl for 30 seconds. Add the corn syrup, vanilla, and salt. Stir to combine.

Make the Ganache and Garnish - Stir in the chocolate chips and let sit for 1 minute. Stir again to combine.

Make the Ganache and Garnish - Microwave the mixture in 15 to 20 second increments until the chocolate is completely melted, smooth, and shiny, stirring between each heating. Do not overcook.

Make the Ganache and Garnish - Pour the chocolate ganache over the brownies. Use an offset spatula or butter knife to spread ganache in an even layer, covering the entire top of the brownies.

Make the Ganache and Garnish - Sprinkle the brownies with rainbow-coated candy bits. Cover and refrigerate until the ganache is set. Slice into 16 brownies and enjoy.