Cosmic Brownies

20 mins
20 mins
The best treat to have as a kid and yes, adults too! This is the gourmet homemade version of Little Debbie's Cosmic Brownies. They taste just like them if not better.
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Cosmic Brownies

Cosmic Brownies

The best treat to have as a kid and yes, adults too! This is the gourmet homemade version of Little Debbie's Cosmic Brownies. They taste just like them if not better.

The best treat to have as a kid and yes, adults too! This is the gourmet homemade version of Little Debbie's Cosmic Brownies. They taste just like them if not better.

20 mins
20 mins

Ingredients

Brownie Batter
  • ⅓ cup unsweetened cocoa powder
  • ½ cup all-purpose flour
  • ¼ teaspoon salt
  • ½ cup unsalted butter melted
  • 3/4 cup white sugar
  • 1/4 cup brown sugar
  • 2 large eggs
  • 1 teaspoon vanilla extract
Chocolate Frosting
  • 3 tablespoons unsalted butter melted
  • 1/3 cup sugar
  • 2 tablespoons heavy cream
  • 1/3 cup chocolate chips milk or semi-sweet
Other
  • 1/4 cup rainbow chips

Instructions

  1. Preheat oven to 350°F.
  2. Line an 8 inch x 8 inch baking pan with parchment paper. Set aside.
  3. In a mixing bowl, whisk together cocoa powder, flour, and salt.
  4. Then, add the melted butter, white sugar, brown sugar, eggs, and vanilla extract. Combine together with a rubber spatula but do not over mix.
  5. Transfer into baking pan and pop in the oven to bake for 20 to 25 minutes. Do not overcook.
  6. While it bakes, make your frosting. Add the melted unsalted butter, sugar, heavy cream, and chocolate chips/chunks to a microwave-safe bowl. Microwave in 15 second intervals, mixing in between until the chocolate is melted (only took 30 seconds for me).
  7. Take the brownies out of the oven and allow to cool to room temperature.
  8. Add the frosting on top and chill for a few minutes in the fridge until the frosting is firm and not runny.
  9. Sprinkle on the rainbow chips and cut into rectangles!
Tips & Notes
  • Here are the rainbow chips I purchased off Amazon. I just removed the black colored ones to make it look just like the original.
  • For the frosting, you can make it with milk or semi-sweet chocolate chips/chunks. If you don't mind a stronger chocolate taste, use semi-sweet like me. If you like it less strong, use milk.
4.5 based on 2 reviews

WHAT DO YOU THINK OF THIS RECIPE?

Rate + Review

It was super yummy!! But I didn’t find it tasted much like cosmic brownies and they felt superrrr sweet. I’ll try making them again with less sugar 🙂 thanks for the recipe though!!

This is the easiest and most delicious recipe i’ve ever tried, and i’ve been baking for 9 years. Today I was looking for a quick recipe that didn’t use a ton of butter and that didn’t use a chocolate bar but rather only cocoa powder and wow, this is it. Its so incredibly delicious on its own and then the topping is also amazing, im still waiting for it to set but it tastes delicious. If you’re skeptical, don’t be! This recipe is a must try, its my new favorite go to brownie recipe. Congrats!

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