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4.92 from 46 votes

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!
Prep Time10 minutes
Cook Time25 minutes
Total Time35 minutes
Course: Dessert
Cuisine: American
Servings: 12 cookies
Calories: 590kcal

Ingredients

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}

Instructions

  • Preheat oven to 350°.

Confetti Cookie

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

Cream Cheese Frosting

  • 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.

Assembly

  • 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

Serving: 1cookie | Calories: 590kcal | Carbohydrates: 101g | Protein: 6g | Fat: 19g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 72mg | Sodium: 578mg | Potassium: 91mg | Fiber: 1g | Sugar: 70g | Vitamin A: 586IU | Vitamin C: 1mg | Calcium: 169mg | Iron: 2mg