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Funfetti Shortbread Sandwich Cookies with Frosting

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These funfetti shortbread sandwich cookies are soft, buttery, and bursting with sprinkles. Each cookie is filled with a creamy vanilla buttercream, making every bite a festive and delightful treat. Perfect for birthdays, parties, or simply enjoying as a sweet snack, these cookies are easy to make and freezer-friendly.

Ingredients

For the Vanilla Buttercream:

1/2 cup Unsalted butter, softened

1 tbsp Vanilla extract

2 1/23 cups Powdered sugar

1 tbsp Heavy cream

Food coloring, optional

For the Shortbread Cookies:

1 3/4 cups All-purpose flour

1/4 tsp Baking Powder

1/4 tsp Baking Soda

1/2 tsp Cream of Tartar

1/4 tsp Salt

1/2 cup Unsalted Butter, softened

1/2 cup Sugar

1 Egg, room temperature

2 tsp Vanilla Extract

1 tsp Almond Extract

1/2 cup Funfetti sprinkles

Instructions

  1. For the buttercream: In a stand mixer fitted with a paddle attachment, cream butter until light and fluffy, 2-3 minutes.
  2. Add vanilla extract and heavy cream, mixing to combine.
  3. Gradually add powdered sugar, 1/2 cup at a time, mixing well after each addition. Scrape down sides occasionally.
  4. Adjust consistency with more cream if too thick, more powdered sugar if too thin. Add food coloring if desired.
  5. For the cookies: Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  6. In a small bowl, combine flour, baking powder, baking soda, cream of tartar, and salt. Set aside.
  7. In a stand mixer, cream butter and sugar until fluffy, 3-4 minutes. Add vanilla extract, almond extract, and egg. Scrape down sides.
  8. Mix in dry ingredients on low until combined, then fold in sprinkles gently.
  9. Roll dough to 1/4″ thick on a lightly floured surface. Cut with cookie cutters, re-rolling as needed.
  10. Place cookies 2 inches apart on baking sheets and chill for 45-60 minutes.
  11. Bake at 350°F for 7-9 minutes, depending on size. Cool on sheets before transferring to a wire rack.
  12. Once cooled, sandwich cookies with buttercream frosting.

Notes

Use chocolate or colored buttercream for different themes.

Swap almond extract for lemon or orange extract for a citrus twist.

Add mini chocolate chips or crushed nuts for extra texture.

Make mini versions for bite-sized party treats.

Freeze unfilled cookies for up to 2 months; fill with frosting after thawing.

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