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Birthday Cake Cookies

Soft Funfetti cookies with creamy, colorful buttercream – a birthday treat you can bake and enjoy anytime!
Prep Time15 minutes
Cook Time15 minutes
Total Time30 minutes
Servings: 12 cookies
Calories: 326kcal
Author: Lucy Brewer

Ingredients

Cookies

  • 1 5.25 ounces box Funfetti Cake Mix
  • 1 teaspoon baking powder
  • 2 tablespoons rainbow sprinkles
  • 6 tablespoons unsalted butter (melted)
  • 2 large eggs

Buttercream Frosting

  • 1 cup unsalted butter, softened
  • 2 teaspoons vanilla extract
  • 1 ½ teaspoons almond extract
  • ¼ teaspoon salt
  • 3 cups confectioners’ sugar
  • food coloring

Instructions

For the Cookies

  • Preheat oven to 325 degrees F, and cover 2 baking sheets with parchment paper or silicone baking mats.
  • In medium mixing bowl, whisk together 1 5.25 ounces box Funfetti Cake Mix, 1 teaspoon baking powder, and 2 tablespoons rainbow sprinkles.
    A glass bowl with flour and rainbow sprinkles, a whisk inside, next to two eggs in a tray and a small bowl of sprinkles on a marble surface.
  • In a small mixing bowl, whisk together 6 tablespoons unsalted butter (melted) and 2 large eggs. Add the butter mixture to the dry cake mixture, and mix with a spoon until a dough forms, or blend using a mixer with cookie paddles.
    A glass bowl with dry cake mix and sprinkles, a bowl of yellow batter being poured in, two eggs, and a bowl of sprinkles on a marble counter.
  • With a large cookie scoop (about 3 tablespoons) scoop 6 dough balls evenly spaced onto each baking sheet.
    Five scoops of cookie dough with sprinkles on a parchment-lined baking sheet, with a bowl of sprinkles, broken eggshells, and a kitchen towel nearby.
  • Bake for 12-15 minutes. Cool completely on a wire rack before frosting.
    Six round sugar cookies with colorful sprinkles are cooling on a wire rack. A small bowl of sprinkles is set nearby on a checkered cloth.

For the Buttercream Frosting

  • In a mixing bowl, whip 1 cup unsalted butter, softened for 3 minutes on high speed, until pale and fluffy.
    Two sticks of butter in a stand mixer bowl with paddle attachments, next to a small bowl of colorful sprinkles on a white surface with a checkered cloth.
  • Whip in 2 teaspoons vanilla extract, 1 1/2 teaspoons almond extract, and 1/4 teaspoon salt.
    A stand mixer bowl with partially mixed batter and vanilla extract, next to a small bowl of colorful sprinkles on a marble countertop.
  • On medium-low speed, begin adding in 3 cups confectioners’ sugar, a half cup at a time, until blended. Add a few drops of your desired color of food coloring.
    A mixing bowl with creamed ingredients, a beater attachment, and a half-cup of powdered sugar being added; a bowl of sprinkles and a checkered cloth in the background.
  • Mix at high speed for 2-3 minutes until creamy.
    A mixing bowl with pink frosting and beaters, next to a small bowl of rainbow sprinkles on a marble countertop with a checkered cloth.
  • Spread generously on top of cookies, or place frosting in a large piping bag with a large star tip to pipe on.
    A baking tray with cupcakes and sprinkles.
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