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Crumbl Birthday Cake Cookie Recipe made with a Cake Mix

Celebrate your birthday with a Copycat Crumbl Birthday Cake Cookie instead of a traditional cake for the ultimate birthday dessert!

Course Dessert
Cuisine American
Keyword crumbl birthday cookies
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 12 cookies
Calories 590 kcal


Confetti Cookie

  • 1 box vanilla cake mix {15.25 ounces}
  • cup all purpose flour
  • 2 eggs
  • cup butter {melted}
  • 2 Tablespoons sour cream
  • ¼ cup sprinkles {plus more for the top of the cookies}

Cream Cheese Frosting

  • 8 ounces cream cheese {softened}
  • ¼ cup butter {softened}
  • 1 cup vanilla cake mix
  • 4 cups powdered sugar
  • 2-3 Tablespoons milk {to thin}


  1. Preheat oven to 350°.

Confetti Cookie

  1. Combine cake mix, flour, eggs, melted butter, sour cream in a large bowl. Mix using a hand held {or stand} mixer until you have a thick dough. Add the sprinkles and mix in by hand until they are evenly distributed.

  2. Using a 1/4 cup, measure out 11-12 cookies. Use your hands to press the cookie dough into a disc that is a thick round circle. Bake 6 cookies at a time. Place the cookie on a silicone mat {or parchment} lined baking sheet for 10-12 minutes or until set.

  3. Remove cookies from the oven and allow them to cool completely on the baking sheet.

Cream Cheese Frosting

  1. For the frosting, combine the softened cream cheese and butter in a large bowl with a hand held mixer until creamy and smooth. Add cake mix and powdered sugar and continue to mix until you have a pipeable consistency. Add enough milk to get the consistency you want.


  1. Add the frosting to a piping bag {or zipper bag} and cut a large triangle from the bottom. Pipe a circular motion starting on the outside and working your way to the middle. Sprinkle the top of each cookie with a few additional sprinkles. Store in an airtight container in the refrigerator for up to 4 days or freeze for up to 3 months.

Nutrition Facts
Crumbl Birthday Cake Cookie Recipe made with a Cake Mix
Amount Per Serving (1 cookie)
Calories 590 Calories from Fat 171
% Daily Value*
Fat 19g29%
Saturated Fat 11g69%
Trans Fat 1g
Polyunsaturated Fat 1g
Monounsaturated Fat 5g
Cholesterol 72mg24%
Sodium 578mg25%
Potassium 91mg3%
Carbohydrates 101g34%
Fiber 1g4%
Sugar 70g78%
Protein 6g12%
Vitamin A 586IU12%
Vitamin C 1mg1%
Calcium 169mg17%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.