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The Best Cosmic Brownies Recipe

4.7 from 139 reviews

Delight in the rich, fudgy texture of these Best Cosmic Brownies topped with a smooth ganache and colorful rainbow candy-coated chocolate chips. Perfectly balanced with a luscious cocoa base and creamy chocolate topping, these brownies offer a fun and festive twist on a classic favorite.

Ingredients

Scale

Brownie Base

  • ½ cup unsalted butter
  • ¾ cup granulated sugar
  • ¼ cup brown sugar
  • ½ cup Dutch-process cocoa powder
  • ¼ tsp salt
  • 1 tsp vanilla extract
  • 2 large eggs, room temperature
  • ½ cup all-purpose flour
  • 1 tbsp cornstarch

Ganache Topping

  • ¼ cup heavy cream
  • 4 oz semisweet chocolate, chopped
  • Pinch of salt

Topping

  • 23 tbsp rainbow candy-coated chocolate chips (Wilton rainbow chips or similar)

Instructions

  1. Prepare the Brownies: Preheat your oven to 350°F (175°C) and line an 8×8 inch baking pan with parchment paper to prevent sticking. Melt the butter in a medium saucepan over the stove, then stir in the granulated sugar, brown sugar, cocoa powder, and salt until you get a smooth, well-blended mixture.
  2. Mix Batter: Transfer the butter mixture to a large bowl and whisk in the vanilla extract. Add the eggs one at a time, beating well after each addition until the batter turns thick and shiny.
  3. Add Dry Ingredients: Carefully fold in the all-purpose flour and cornstarch until just combined to avoid overmixing and maintain the fudgy texture.
  4. Bake the Brownies: Spread the batter evenly in your prepared pan. Bake for 20 to 22 minutes, or until the edges are set and the center has a slight jiggle. Remove from oven and let cool completely in the pan.
  5. Remove Parchment: Once cooled, flip the brownies out of the pan and peel off the parchment paper to expose a flat surface, perfect for applying the ganache.
  6. Make the Ganache: Heat the heavy cream in the microwave for 30 seconds until warm. Pour over the chopped semisweet chocolate and let it sit for one minute. Add a pinch of salt and stir gently until the ganache is silky and smooth.
  7. Apply Ganache and Add Toppings: Spread the ganache over the cooled brownie layer evenly. While the ganache is still soft, sprinkle the rainbow candy-coated chocolate chips on top to create a vibrant, cosmic look.
  8. Chill and Slice: Refrigerate the brownies for 1 to 2 hours to set the ganache completely. For clean slices, wipe your knife between each cut. Serve and enjoy your colorful cosmic brownies!

Notes

  • This recipe yields either 8 large bars or 16 smaller squares depending on how you cut the brownies.
  • Nutritional facts are estimated based on 16 squares per batch.
  • Use room temperature eggs to ensure a smooth batter and better texture.
  • Be careful not to overbake; the brownies should have a slight jiggle in the center to stay fudgy.
  • Wiping the knife between slices is key for neat, clean edges on the ganache-topped brownies.

Keywords: cosmic brownies, fudge brownies, chocolate brownies, ganache brownies, rainbow brownies, festive dessert, easy brownies