These fudgy cosmic brownies feature a rich, dense chocolate base topped with a smooth glossy ganache and colorful rainbow chips, delivering a nostalgic homemade version of the classic treat.
Cooling & Setting Time (minutes): 30 minutesminutes
Total Time: 1 hourhour10 minutesminutes
Servings: 16servings
Calories: 320kcal
Author: Chloe White
Cost: $6
Equipment
8x8 inch baking pan
Mixing bowls
whisk
spatula
saucepan
Ingredients
1/2cupunsalted butter
1cupgranulated sugar
2large eggs
1tspvanilla extract
1/2cupall-purpose flour
1/3cupunsweetened cocoa powder
1/4tspsalt
3/4cupsemi-sweet chocolate chips (for batter)
1cupsemi-sweet chocolate chips (for ganache)
1/2cupheavy cream
2tbsprainbow chip sprinkles
Instructions
Preheat oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
Melt butter and whisk with sugar until well combined.
Add eggs and vanilla, whisking until smooth.
In a separate bowl, mix flour, cocoa powder, and salt.
Fold dry ingredients into wet mixture until just combined.
Stir in chocolate chips, then spread batter evenly in prepared pan.
Bake for 20–25 minutes until a toothpick comes out with moist crumbs.
Cool brownies completely in the pan before adding topping.
Heat heavy cream until simmering, then pour over chocolate chips and let sit.
Whisk until smooth, then spread evenly over cooled brownies.
Sprinkle rainbow chips on top before ganache sets.
Refrigerate for 30 minutes, then slice and serve.
Notes
Do not overbake to maintain a fudgy texture. Allow brownies to cool completely before adding ganache. Refrigerate briefly for clean slices. Store in an airtight container for up to 5 days.