Yield: 12 cookies

Cosmic Brownie Cookies

Prep Time 15 minutes
Cook Time 10 minutes
Additional Time 20 minutes
Total Time 45 minutes

Cosmic Brownie Cookies have a soft, chewy chocolate cookie base that's topped with melted chocolate and sprinkled with colorful chocolate candies for a fun dessert! They are out of this world delicious!


For the cookies

  • 2 ½ cups all-purpose flour
  • ½ cup unsweetened cocoa powder
  • 2 teaspoons baking powder
  • ½ teaspoon cornstarch
  • ½ cup salted butter
  • 1 cup semi-sweet chocolate chips
  • ⅔ cup light brown sugar, packed
  • ½ cup granulated sugar
  • 2 teasoons vanilla extract
  • 2 large eggs

For the topping

  • 1 cup semi-sweet chocolate chips
  • ¼ cup heavy whipping cream
  • rainbow chocolate chips *see note


  1. Preheat oven to 350 degrees F. Line a cookie sheet with parchment paper. Set aside.
  2. In a bowl, combine flour, cocoa powder, baking powder, and cornstarch. Set aside.
  3. In a saucepan over medium heat, melt butter. Remove from heat. Add in chocolate chips and stir until melted. Set aside.
  4. In a mixing bowl with whisk attachment, beat eggs, vanilla, and sugar until blended and double in size. Change to a paddle attachment and slowly add the chocolate mixture to the mixing bowl.
  5. Once combined, add dry ingredients and mix JUST until combined using a wooden spoon. Do not over mix.
  6. Using a large 2 Tablespoon cookie scoop, scoop balls onto baking sheet, 3 inches apart. Using the bottom of a glass, press down so the cookies are about ½ inch thick.
  7. Bake cookies for 10 minutes. Cool completely.
  8. While cookies cool, make chocolate topping. Add chocolate chips and cream to a microwave-safe bowl. Heat for 30 seconds and stir until smooth, heating in 30 second increments (mine took 1:30).
  9. Spoon 1 Tablespoon of chocolate on top of each cooled cookie and sprinkle with rainbow chips.


  • Rainbow chips are colored chocolate candies, not sprinkles. If you can't find them, you can use mini M&M's instead!
  • Store cookies in airtight container for up to 3 days at room temperature, or refrigerate for up to one week.
  • Freeze cookies for up to 3 months.
  • See blog post for more recipe tips and tricks.

Nutrition Information:



Serving Size:

1 cookie

Amount Per Serving: Calories: 435Total Fat: 21gSaturated Fat: 12gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 57mgSodium: 162mgCarbohydrates: 62gFiber: 3gSugar: 36gProtein: 6g

*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.

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