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Cosmic brownies recipe 2025 12 11 182445 150x150

Cosmic Brownies

Delicious fudgy brownies topped with chocolate ganache and colorful rainbow candy-coated chocolate chips, perfect for any occasion!
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Dessert, Snack
Cuisine American
Servings 16 pieces
Calories 210 kcal

Ingredients
  

Brownie Batter

  • ¾ cup all-purpose flour (90 grams; for gluten-free, use a 1-1 flour) Use gluten-free flour if needed.
  • cup unsweetened cocoa powder (56 grams)
  • 12 tablespoons unsalted butter (170 grams, melted; 1½ sticks; salted works too) If using salted butter, omit the kosher salt.
  • 1 cup granulated sugar (200 grams; or use brown sugar)
  • ½ cup brown sugar (107 grams)
  • 2 large eggs (50 grams, room temperature)
  • 1 teaspoon pure vanilla extract (4 grams)
  • ¾ teaspoon kosher salt

Chocolate Ganache Topping

  • 1 cup chocolate chips (170 grams; milk, semisweet, or dark chocolate chips all work)
  • ½ cup heavy cream (114 grams)

Toppings

  • ¼ cup rainbow candy-coated chocolate chips (43 grams; for topping) Can substitute with mini M&Ms or rainbow sprinkles.

Instructions
 

Preparation

  • Preheat the oven to 325°F (160°C). Spray a 9x9-inch baking pan with nonstick spray and line it with parchment paper. Set aside.
  • In a medium bowl, whisk together the flour and cocoa powder.
  • In a separate larger bowl, whisk the melted butter and both sugars together.
  • Add the eggs, vanilla extract, and salt to the butter and sugar mixture. Mix well.
  • Gradually add the flour mixture into the wet ingredients. Stir until just combined, being careful not to overmix.
  • Pour the brownie batter into the prepared pan and use a spatula to spread it evenly.

Baking

  • Bake for 30-35 minutes, or until a toothpick inserted comes out nearly clean. Allow the brownies to cool.
  • While the brownies are baking, heat ½ cup of heavy cream in a pot and add 1 cup of chocolate chips. Stir until the chocolate melts and the mixture is smooth.
  • Spread the chocolate ganache over the cooled brownies. Sprinkle rainbow chips on top.
  • Refrigerate or freeze until the frosting sets before enjoying!

Notes

Store leftovers in an airtight container. Allow to cool completely before adding ganache. Enjoy with ice cream for a special treat.
Keyword Baking Recipe, Chocolate Brownies, Cosmic Brownies, Easy Brownies, Fudgy Brownies