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Delicious homemade cosmic brownies with colorful sprinkles on top.

Cosmic Brownies

Indulge in these classic Homemade Cosmic Brownies, featuring a rich chocolate flavor and a nostalgic touch with a crisp exterior and moist fudgy interior, perfect for any occasion.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 12 pieces
Course: Dessert, Snack
Cuisine: American
Calories: 200
Ingredients Method Notes

Ingredients
  

Brownie Batter
  • 1 cup unsalted butter, melted
  • 2 cups granulated sugar
  • 1 teaspoon vanilla extract
  • 4 large eggs
  • 1 cup all-purpose flour
  • 1 cup unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder
Icing
  • 1/2 cup unsweetened cocoa powder
  • 1/4 cup unsalted butter, melted
  • 2 cups powdered sugar
  • 1/4 cup milk
  • 1 teaspoon vanilla extract for icing
Toppings
  • to taste Rainbow sprinkles for topping

Method
 

Preparation
  1. Preheat your air fryer to 350°F (175°C) and grease a 9x13-inch baking dish or line it with parchment paper.
  2. In a large mixing bowl, combine the melted butter and granulated sugar. Whisk until the mixture is smooth and well blended.
  3. Stir in the vanilla extract and eggs until fully incorporated.
  4. In another bowl, sift together the all-purpose flour, cocoa powder, salt, and baking powder. Gradually fold this dry mix into the wet ingredients, stirring until just combined.
  5. Pour the batter into the prepared dish, smoothing the top with a spatula.
Baking
  1. Place the dish in the air fryer basket and bake for 25-30 minutes. To check for doneness, insert a toothpick into the center; it should come out with moist crumbs.
  2. Allow the brownies to cool completely in the pan to set properly.
Icing
  1. For the icing, mix together the cocoa powder, melted butter, powdered sugar, milk, and vanilla extract until smooth.
  2. Spread this icing over the cooled brownies.
  3. Finish by sprinkling rainbow sprinkles on top of the icing. Let the icing set for 15-20 minutes before slicing into squares.

Notes

For best results, allow brownies to cool completely before cutting. You can also mix in chocolate chips or nuts before baking for extra flavor.