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!
Preheat oven to 350 degrees F. Line a cookie sheet with parchment paper. Set aside.
In a bowl, combine flour, cocoa powder, baking powder, and cornstarch. Set aside.
In a saucepan over medium heat, melt butter. Remove from heat. Add in chocolate chips and stir until melted. Set aside.
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.
Once combined, add dry ingredients and mix JUST until combined using a wooden spoon. Do not over mix.
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 1/2 inch thick.
Bake cookies for 10 minutes. Cool completely.
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).
Spoon 1 Tablespoon of chocolate on top of each cooled cookie and sprinkle with rainbow chips.
Notes
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.