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Birthday Cake Cookies

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Prep Time: 1 hour 10 minutes
Cook Time: 9 minutes
Total Time: 1 hour 30 minutes
Servings: 30
Author: Kimberly


  • 1/2 cup 1 stick Unsalted Butter (room temperature)
  • 1/2 cup Light Brown Sugar packed
  • 1/4 cup Dark Brown Sugar packed
  • 1/2 cup Sugar
  • 1 Large egg plus 1 egg yolk (room temperature)
  • 2 teaspoons Pure Vanilla Extract
  • 1 cup All Purpose Flour
  • 1 and 1/4 cup Yellow Cake Mix
  • 2 tablespoons Instant Vanilla Pudding Mix not cook & serve version
  • 1 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup Jimmies Rainbow Sprinkles
  • 1 cup White Chocolate Chips


  • In a large mixing bowl combine butter and all 3 sugars together, mixing with a electric mixer on medium speed until creamed together. Add in egg, egg yolk, and vanilla extract and continue mixing until thoroughly combined.
  • Slowly add in flour, cake mix, pudding mix, baking soda, and salt. Continue to mix until everything is combined and cookie dough has a thicker texture.
  • Add white chocolate chips and sprinkles into the batter, folding until evenly distributed throughout the dough.
  • Chill cookie dough in the fridge for at least an hour before baking. You can chill dough over night as well but as a minimum time chill for at least an hour.
  • Preheat oven to 350 degrees. Line a cookie sheet with parchment paper or lightly grease with cooking spray. Scoop small, about 1 to 2 inch cookie dough balls and place them on the baking sheet, about 2 inches apart. Bake for 9-10 minutes. Do not over bake!
  • Remove cookies from oven and allow to cool for 10 minutes before serving.


  • *prep time above includes chilling time for cookie dough
  • *to have the softest texture, bake cookie for 9 minutes, 10 minutes at the most. Do not bake over 10 minutes because this will alter the soft texture.