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Homemade Cosmic Brownies

These delightful brownies, topped with colorful candy and a rich ganache, will transport you back to childhood treats and are perfect for any gathering.
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Prep Time 20 minutes
Cook Time 33 minutes
Total Time 53 minutes
Servings: 12 servings
Course: Dessert, Snack
Cuisine: American
Calories: 250
Ingredients Method Notes

Ingredients
  

Brownie Base
  • 1 cup unsalted butter (melted and slightly cooled, 230 grams)
  • 1 ¾ cups granulated sugar (350 grams)
  • ½ cup packed light brown sugar (100 grams)
  • 3 large eggs (at room temperature)
  • 1 large egg yolk (at room temperature)
  • 1 teaspoon pure vanilla extract
  • 1 cup unsweetened cocoa powder (90 grams)
  • 1 cup all-purpose flour (spooned & leveled, 125 grams)
  • ½ teaspoon salt
Chocolate Ganache Topping
  • 8 ounces semisweet chocolate (finely chopped, 226 grams)
  • 1 tablespoon light corn syrup (optional but adds glossiness)
  • ½ cup heavy cream (120 ml)
Toppings
  • 1 cup rainbow candy coated chocolate chips
  • 1 cup Mini M&Ms or sprinkles

Method
 

Preparation
  1. Preheat your oven to 350°F (180°C) and line a 9x13-inch baking pan with foil or parchment paper, making sure to leave some overhang for easy removal.
  2. In a large mixing bowl, whisk together the melted butter, granulated sugar, and brown sugar until well combined and smooth.
  3. Whisk in the eggs, the egg yolk, and vanilla extract until fully combined.
  4. Sift in the cocoa powder, flour, and salt, and continue whisking gently until just combined.
  5. Scoop the batter into the prepared baking pan, spreading it evenly.
Baking
  1. Bake for 27 to 33 minutes, or until a toothpick inserted in the center comes out clean with just a few moist crumbs.
  2. Remove the brownies from the oven and allow them to cool completely in the pan.
Ganache Preparation
  1. Place the chopped semisweet chocolate and corn syrup in a heatproof bowl.
  2. Heat the heavy cream until it simmers and pour it over the chocolate. Let sit for 3 minutes.
  3. Mix until smooth. If there are clumps, microwave in short increments until fully melted.
Assembly
  1. Spread the ganache over the cooled brownies.
  2. Sprinkle rainbow candy-coated chocolate chips, mini M&Ms, or sprinkles on top.
  3. Refrigerate for 1 to 2 hours to allow ganache to set before cutting.

Notes

Store brownies in an airtight container at room temperature for up to five days or refrigerate for longer freshness. Feel free to experiment with different toppings to suit your taste.