Crumbl Cosmic Brownie Cookie Copycat Recipe
Crumbl Cosmic Brownie Cookie Copycat Recipe is a medium American recipe that serves 12. 250 calories per serving. Recipe by Cooking with Karli on YouTube.
Prep: 28 min | Cook: 32 min | Total: 1 hr 10 min
Cost: $26.47 total, $2.21 per serving
Ingredients
- 1 cup Salted Butter (softened to room temperature)
- 1 cup Light Brown Sugar (packed)
- 0.5 cup Granulated Sugar
- 2 teaspoons Vanilla Extract (pure vanilla)
- 2 tablespoons Light Corn Syrup
- 2 Large Eggs (room temperature)
- 2.25 cups All-Purpose Flour (sifted)
- 0.75 cup Dark Dutch-Processed Cocoa Powder (deep chocolate flavor; regular cocoa can be used with slightly lighter taste)
- 2 tablespoons Cornstarch
- 1 teaspoon Baking Soda
- 0.5 teaspoon Salt
- 1 cup Heavy Whipping Cream (35% fat, for ganache)
- 8 ounces Semi-Sweet Chocolate Chips (good melting quality)
- 0.5 cup Candy-Coated Chocolate Chips (for topping; can substitute mini M&Ms)
Instructions
Cream Butter and Sugars
In a mixing bowl, beat the softened salted butter with the light brown sugar and granulated sugar until the mixture is light, fluffy, and pale in color.
Time: PT5M
Add Wet Ingredients
Add the eggs, vanilla extract, and light corn syrup to the creamed butter. Mix on medium speed until fully incorporated, scraping the sides of the bowl as needed.
Time: PT3M
Incorporate Dry Ingredients
Sift together the all‑purpose flour, dark Dutch‑processed cocoa powder, cornstarch, baking soda, and salt. Gradually add to the wet mixture, mixing on low until a silky, soft dough forms.
Time: PT5M
Shape the Dough
Divide the dough into 12 equal portions (about ½ cup each). Roll each portion into a log, then cut each log into thirds. Flatten each piece gently into a puck‑shaped cookie, leaving space on the baking sheet.
Time: PT10M
Preheat Oven
Preheat the oven to 350°F (175°C).
Time: PT5M
Temperature: 350°F
Bake Cookies
Place the prepared cookies on the baking sheet and bake for 15 minutes, or until the tops have spread, flattened, and begin to crackle.
Time: PT15M
Temperature: 350°F
Prepare Chocolate Ganache
While the cookies bake, heat the heavy whipping cream in a microwave‑safe bowl for about 1 minute 30 seconds until hot and bubbling. Immediately add the semi‑sweet chocolate chips, stir, and let sit for 3 minutes. Then stir until smooth and glossy.
Time: PT7M
Frost and Top Cookies
Once cookies are removed from the oven and slightly cooled, spoon a generous amount of the warm ganache onto each cookie and spread lightly. Immediately sprinkle candy‑coated chocolate chips over the wet frosting.
Time: PT10M
Cool and Serve
Allow the frosted cookies to set for a few minutes. Serve warm for ultimate fudginess, or store as desired.
Time: PT5M
Nutrition Facts
- Calories
- 250
- Protein
- 3g
- Carbohydrates
- 30g
- Fat
- 13g
- Fiber
- 2g
Dietary info: Vegetarian
Allergens: Dairy, Eggs, Gluten, Soy
Last updated: April 18, 2026






