# Cosmic Brownies

Cosmic brownies are a childhood treat that are delicious and easy to make.

- Total time: 24 min
- Cuisine: American
- Category: Dessert
- Language: en

## Ingredients

- 0.75 cup butter
- 1.5 cup granulated sugar
- 0.5 cup brown sugar
- 3 eggs
- 1 egg yolk
- 1 tablespoon vanilla
- 1 teaspoon salt
- 0.25 teaspoon baking soda
- 2 tablespoons cornstarch
- 1 tablespoon coffee
- 1 cup flour
- 1.5 cup cocoa powder
- semi-sweet chocolate
- heavy cream
- rainbow chocolate chips

## Instructions

1. Add 3/4 cup of butter to a microwave-safe bowl.
2. Add 1 1/2 cups of granulated sugar to the bowl.
3. Add 1/2 cup of brown sugar to the bowl.
4. Give this a light mix.
5. Microwave for 2 minutes.
6. Once that's done, give this a stir until it's well combined.
7. Throw it back in the microwave for another 30 seconds.
8. Transfer the mixture to a larger bowl once it's completely cool.
9. Toss in 3 eggs and 1 egg yolk.
10. Stir until well combined.
11. Add 1 tablespoon of vanilla.
12. Add 1 teaspoon of salt.
13. Add a 1/4 teaspoon of baking soda.
14. Add 2 tablespoons of cornstarch.
15. Give this a good stir to make sure you get all the lumps out.
16. Add a tablespoon of coffee.
17. Add 1 cup of flour in batches.
18. Add 1 1/2 cups of good cocoa powder in batches.
19. Fold this in until it becomes a nice thick batter.
20. Pour the batter into a prepared 9x13 pan.
21. Smooth out the batter edge to edge.
22. Double check to make sure that your batter isn't poisoned.
23. Bake this in a preheated 350-degree oven for 24 minutes.
24. Whip up a ganache made out of semi-sweet chocolate and heavy cream while that's baking.
25. Make sure your brownies are completely cool before pouring on the thickened ganache.
26. Spread the ganache out edge to edge.
27. Chill in the fridge for about 20 minutes before topping with iconic rainbow chocolate chips.
28. Slice the brownies.

## Equipment

- microwave-safe bowl
- microwave
- fork
- larger bowl
- spatula
- 9x13 pan
- oven mitts
- whisk
- fridge

## Tips

- Make sure your butter and sugar mixture is completely cool before transferring to a larger bowl.
- The coffee flavor completely bakes out but really enhances the flavor of the chocolate.
- Be careful not to overmix, no one wants rock hard brownies.
- Make sure your brownies are completely cool before pouring on the thickened ganache.
- The recipe for the ganache can be found in the comments below.

## Source

- Original video: https://www.tiktok.com/t/ZT6xgs2A7/
- Recipe page: https://www.cliprecipe.com/recipe/cb25d4e9-f1ef-48d2-92e7-b0f1511dafe9
- Extracted: 2025-08-17

Extracted from the video by Clip Recipe (https://www.cliprecipe.com). Quantities and steps are as stated or shown in the video. Site guide for agents: https://www.cliprecipe.com/llms.txt