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Best Cosmic Brownie Cookies – Easy Copycat Recipe

cosmic brownie cookies - featured image

These Crumbl Cosmic Brownie Cookies are fudgy, chocolatey, and ridiculously easy to make. They come together in under 30 minutes with simple pantry ingredients, and they taste like something from a fancy bakery.

Ingredients

Scale
  • 1 box (15.25 oz) chocolate fudge brownie mix
  • 1/2 cup (1 stick) unsalted butter, melted
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1/4 cup all-purpose flour
  • 2 tablespoons unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1/2 cup candy-coated chocolate pieces
  • 1/2 cup semi-sweet chocolate chips (for ganache)
  • 1/4 cup heavy cream (for ganache)

Instructions

  1. Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone mats.
  2. Melt the butter. Place the 1/2 cup unsalted butter in a microwave-safe bowl and heat in 20-second intervals until fully melted. Let it cool for 2-3 minutes.
  3. Mix the wet ingredients. In a large bowl, whisk together the melted butter, 1 large egg, and 1 teaspoon vanilla extract until smooth and well combined.
  4. Add the dry ingredients. Pour in the entire box of brownie mix, 1/4 cup all-purpose flour, 2 tablespoons cocoa powder, and 1/4 teaspoon salt. Stir until just combined. The dough will be thick and fudgy.
  5. Fold in the chocolate pieces. Gently fold in 1/2 cup candy-coated chocolate pieces. Save a small handful for topping the cookies before baking.
  6. Scoop the dough. Using a cookie scoop or two spoons, portion out 2-tablespoon-sized balls of dough. Place them on the prepared baking sheets about 2 inches apart.
  7. Press a few extra chocolate pieces on top. Take the reserved candy pieces and gently press 3-4 onto the top of each dough ball.
  8. Bake for 9-11 minutes. The cookies are done when the edges look set and slightly cracked, but the centers still look soft and slightly underdone.
  9. Cool on the baking sheet. Let the cookies rest on the baking sheet for 5 minutes, then transfer them to a wire cooling rack to cool completely.
  10. Make the ganache (optional). While the cookies cool, place 1/2 cup semi-sweet chocolate chips and 1/4 cup heavy cream in a small microwave-safe bowl. Microwave in 15-second intervals, stirring between each, until smooth and glossy. Let it cool for 2-3 minutes until it thickens slightly.
  11. Drizzle the ganache. Once the cookies are completely cool, drizzle the ganache over the tops using a spoon or a small piping bag. Sprinkle on a few extra candy pieces while the ganache is still wet. Let the ganache set for about 15 minutes.

Notes

Don’t skip the flour—it prevents the cookies from spreading too thin. Use room temperature egg to avoid lumpy dough. Watch the bake time carefully; cookies should look slightly underdone when removed from the oven. For fudgier cookies, bake for 9 minutes; for firmer cookies, bake for 11 minutes. The dough can be chilled for 15-20 minutes if too sticky. Double the batch as these cookies disappear fast. Freeze unbaked dough balls for up to 3 months.

Nutrition

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