Description
These homemade Cosmic Brownies are rich, fudgy, and ultra-chewy, just like the ones you loved as a kid—only better! Topped with a silky chocolate ganache and colorful candy-coated chocolate chips, they bring the perfect mix of nostalgia and indulgence.
Ingredients
Scale
Brownie Base
- 10 tbsp unsalted butter, melted
- 1 cup granulated sugar
- 1/3 cup packed light brown sugar
- 3/4 cup + 2 tbsp unsweetened cocoa powder, sifted
- 2 large eggs + 1 egg yolk (for extra chewiness)
- 1 tbsp corn syrup (for a fudgy texture)
- 1/2 tsp vanilla extract
- 2/3 cup all-purpose flour
- 1 tbsp cornstarch
- 1/4 tsp salt
Chocolate Ganache Frosting
- 1/2 cup heavy cream
- 1 1/2 cups semisweet chocolate chips
Topping
- 1/4 cup rainbow candy-coated chocolate chips (or mini M&Ms)
Instructions
- Preheat & Prep – Preheat oven to 350°F (175°C). Line an 8×8-inch metal baking pan with parchment paper.
- Make the Batter – In a microwave-safe bowl, melt butter, then stir in granulated sugar, brown sugar, and cocoa powder until smooth. Let cool slightly.
- Add Wet Ingredients – Mix in eggs, egg yolk, corn syrup, and vanilla extract until fully combined.
- Incorporate Dry Ingredients – Gently fold in flour, cornstarch, and salt until just combined. Avoid overmixing.
- Bake – Spread batter evenly into the pan and bake for 25 minutes, or until the edges are set and the center is slightly soft. Let cool completely.
- Prepare Ganache – Heat heavy cream in the microwave for 1 minute until hot but not boiling. Pour over chocolate chips, let sit for 3 minutes, then stir until smooth.
- Assemble & Chill – Spread ganache over cooled brownies and sprinkle with rainbow candy-coated chips. Refrigerate for 1-2 hours to set before slicing.
Notes
- For extra chewy brownies, store them in the fridge and serve chilled.
- Use a metal baking pan for best results—glass can cause uneven baking.
- Swap rainbow chips for crushed peppermint, caramel drizzle, or peanut butter swirl for a fun twist.
- Prep Time: 15 minutes
- cooling: 10 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 290 kcal
- Sugar: 26g
- Sodium: 85mg
- Fat: 14g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 45mg
Keywords: Cosmic Brownies, homemade brownies, fudgy brownies, chewy brownies, chocolate ganache brownies, nostalgic desserts, Little Debbie brownies