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Homemade Cosmic Brownies

Decadent Homemade Cosmic Brownies That Spark Childhood Joy

These Homemade Cosmic Brownies evoke nostalgia with their chewy texture, rich fudge ganache, and vibrant rainbow chips.
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Prep Time 15 minutes
Cook Time 25 minutes
Cooling Time 1 hour
Total Time 1 hour 40 minutes
Servings: 12 slices
Course: Desserts
Cuisine: American
Calories: 250
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Brownies
  • 1 cup Unsalted Butter melted
  • 1 cup Granulated Sugar
  • 1/2 cup Brown Sugar packed
  • 2 teaspoons Vanilla pure extract recommended
  • 3 Eggs at room temperature
  • 1 cup All-Purpose Flour
  • 1/2 cup Unsweetened Cocoa Powder
  • 1 teaspoon Baking Powder
  • 1 tablespoon Cornstarch
  • 1/2 teaspoon Salt
  • 1/4 cup Milk dairy or plant-based
For the Ganache
  • 1 cup Heavy Whipping Cream no substitutes recommended
  • 1 cup Semi-Sweet Chocolate Chips dark or milk chocolate based on preference
For the Topping
  • 1/2 cup Rainbow Chips or chocolate sprinkles

Equipment

  • 9x13-inch baking dish
  • Mixing Bowl
  • whisk
  • Spatula
  • saucepan

Method
 

Step‑by‑Step Instructions
  1. Preheat your oven to 350°F (175°C) and prepare a 9x13-inch baking dish with parchment paper.
  2. In a large mixing bowl, beat together melted butter, granulated sugar, brown sugar, and vanilla until smooth.
  3. Add the eggs one at a time, mixing well after each addition.
  4. In a separate bowl, whisk together the flour, cocoa powder, baking powder, cornstarch, and salt.
  5. Gradually add the dry ingredients to the wet mixture, alternating with milk.
  6. Pour the batter into the prepared baking dish and spread evenly.
  7. Bake for 18-25 minutes until a toothpick comes out with moist crumbs.
  8. Prepare the ganache by simmering cream and adding chocolate chips until smooth.
  9. Pour the ganache over the cooled brownies and sprinkle with rainbow chips.
  10. Allow to set for 30-60 minutes and then slice into squares to serve.

Nutrition

Serving: 1sliceCalories: 250kcalCarbohydrates: 32gProtein: 3gFat: 13gSaturated Fat: 8gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 4gCholesterol: 50mgSodium: 150mgPotassium: 160mgFiber: 1gSugar: 22gVitamin A: 500IUCalcium: 30mgIron: 1.5mg

Notes

Allow brownies to cool completely before slicing for best texture. Adjust baking time for different pan sizes.

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