Birthday Cake Mix Sandwich Cookies Recipe
Prep Time:
50 minutes
Cook Time:
10 minutes
Servings:
10 Sandwich Cookies
Ingredients
  • 1 (13 ¼-ounce) box vanilla cake mix
  • ½ cup unsalted butter, melted and cooled
  • 2 eggs
  • 1 teaspoon vanilla extract
  • ¼ cup colored sprinkles, plus more for the sides
  • 2 cups powdered sugar
  • ¼ cup unsalted butter, softened
  • 2 ounces cream cheese
  • 1 teaspoon vanilla extract
  • 1 tablespoon milk
Directions
  1. Make the cookies: In a large bowl, mix together the cake mix, melted butter, eggs, and vanilla extract until well combined.
  2. Add the sprinkles to the bowl and mix until just combined. Refrigerate for 30 minutes.
  3. Preheat the oven to 350 F.
  4. Line two baking sheets with parchment paper.
  5. Use a medium cookie scoop to scoop 20 balls of cookie dough onto the baking sheets.
  6. Bake in the preheated oven for 10–12 minutes, until the cookies are puffy and the edges are golden brown. Let the cookies cool completely.
  7. Add the frosting ingredients to a large bowl and use an electric or stand mixer to beat everything together until smooth.
  8. Spread or pipe the icing onto the bottoms of half of the cooled cookies.
  9. Top with the other half of the cookies, gently pressing them together.
  10. Roll the sides of the cookies in additional sprinkles, if desired. Serve immediately or refrigerate for up to 4 days in an airtight container.