Cosmic Brownie Cookies

Categories
Added By Charlie
Servings 18 cookies
Added March 19, 2026
Fudgy brownie cookies with a chocolate ganache frosting. Legit tastes like cosmic brownies!!
Cosmic Brownie Cookies

Ingredients

  • 1 cup
    butter, room temp
  • 1 1/2 cups (318g)
    light brown sugar, packed
  • 1/2 cup (106g)
    granulated sugar
  • 1 teaspoon
    baking powder
  • 3/4 teaspoon
    salt
  • 1/2 teaspoon
    baking soda
  • 2
    eggs, large
  • 1 tablespoon
    vanilla extract
  • 2 3/4 cups (390g)
    all-purpose flour
  • 2/3 cup (57g)
    dutch-process cocoa powder
  • 1/2 cup
    heavy cream
  • 1 1/2 cup (255g)
    semisweet chocolate chips

Instructions

Step 1
1. Preheat oven to 350F
Step 2
2. Cream butter, sugars, baking powder/soda, and salt until light and fluffy, 1-2 mins
Step 3
3. Add the eggs and vanilla. Mix until well combined
Step 4
4. Add the flour and cocoa powder. Mix until evenly combined with no dry streaks
Step 5
5. Scoop cookie dough into 2-tablespoon size balls and roll until smooth. Place on baking sheet a couple inches apart
Step 6
6. Bake for 10-11 minutes. Cookies should be slightly set on edges and a little jiggly in the center
Step 7
7. Remove from oven. Use a flat-bottomed glass to slightly flatten the tops of the cookies
Step 8
8. Let cool for ~5 mins on baking pan, and then transfer to cooling rack to finish cooling
Step 9
9. Make the ganache: add the chocolate chips to a bowl
Step 10
10. Heat heavy cream until steaming and bubbles start to form around the edge. Add heavy cream to chocolate chips, pushing down chocolate chips to submerge
Step 11
11. Let sit for 2-3 minutes, and then whisk until smooth and glossy
Step 12
12. Let ganache cool for 5-10 minutes
Step 13
13. Spread ganache topping on cookies and decorate with appropriate sprinkles

Additional Notes

I usually weigh my cookie dough balls. Using 60g balls I got about 20 cookies worth. The recipe says yield 36 so maybe 60g was a little too much.

Otherwise made as written. Recipe notes that the cookies are even better after chilling in the fridge - and they indeed are!

Tags

cookies chocolate dessert ganache

Comments

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Momther March 22, 2026
Looks yummy!! Nice!