Description
These Easy Homemade Cosmic Brownies are rich, fudgy, and topped with a luscious chocolate frosting and vibrant candy-coated chocolates. Perfect for a fun treat or special occasion, these brownies combine a dense cocoa-rich base with a glossy, creamy topping, finished off with colorful sprinkles or mini M&M’s for that classic cosmic look. With straightforward preparation and baking, you’ll have dessert-ready in under two hours.
Ingredients
Scale
Brownie Base
- 10 tbsp Unsalted Butter
- 1 cup Granulated Sugar
- â…“ cup Light Brown Sugar (packed)
- ¾ cup + 2 tablespoons Unsweetened Cocoa Powder
- ½ tsp Vanilla Extract
- 2 Large Eggs
- 1 Egg Yolk
- 1 tbsp Corn Syrup
- â…” cup All-Purpose Flour
- 1 tbsp Cornstarch
- ¼ tsp Fine Sea Salt
Chocolate Frosting
- ½ cup Heavy Cream
- 1 ½ cup Semisweet Chocolate Chips
Toppings
- Rainbow Candy-Coated Chocolate Chips or Mini M&M’s
- Sprinkles or Other Candy Toppings (optional)
Instructions
- Preheat and Prepare Pan: Preheat your oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper or foil and lightly spray with cooking spray to prevent sticking.
- Melt Butter: In a large microwave-safe bowl, melt the butter for about 90 seconds until fully liquefied.
- Combine Sugars and Cocoa: Add granulated sugar, brown sugar, and cocoa powder to the melted butter. Stir well until fully incorporated. Let the mixture cool slightly if it’s too hot.
- Add Wet Ingredients: Mix in vanilla extract, the two eggs, egg yolk, and corn syrup. Stir continuously until the batter becomes smooth and glossy, ensuring all ingredients are well blended.
- Add Dry Ingredients: Gently fold in the all-purpose flour, cornstarch, and fine sea salt until just combined—do not overmix. The batter will be thick and fudgy.
- Spread Batter: Evenly spread the thick brownie batter into the prepared baking pan, smoothing the top for an even bake.
- Bake the Brownies: Bake in the preheated oven for approximately 25 minutes, or until the center appears set but still moist. Use a toothpick inserted near the center to check doneness; it should come out with moist crumbs but not wet batter.
- Cool the Brownies: Remove the pan from the oven and allow the brownies to cool completely in the pan before frosting.
- Prepare Chocolate Frosting: Place the heavy cream in a microwave-safe bowl and heat for about 1 minute until hot but not boiling.
- Melt Chocolate: Add semisweet chocolate chips to the hot cream and let them sit for 3 minutes to soften, then stir until the frosting is smooth, glossy, and fully combined.
- Frost the Brownies: Pour the chocolate frosting evenly over the cooled brownies, spreading gently to cover the entire surface.
- Add Candy Toppings: Sprinkle rainbow candy-coated chocolate chips, mini M&M’s, or your choice of sprinkles over the chocolate frosting while it is still soft.
- Chill to Set: Refrigerate the frosted brownies for 1 to 2 hours to allow the frosting to fully set and firm up.
- Slice and Serve: Once the frosting is firm, cut the brownies into 9 squares for serving and enjoy your cosmic-themed treat!
Notes
- For best texture, do not overbake; brownies should remain fudgy in the center.
- Allow the batter to cool slightly before adding eggs to prevent cooking the eggs prematurely.
- The frosting can be made ahead and stored refrigerated for up to 3 days.
- Use parchment paper for easier removal and cleaner edges when slicing.
- Customize toppings with your favorite sprinkles or candy coatings for added flair.
