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Easy Valentine's Day Sugar Cookies

Soft and Delicious sugar cookies, made with kefir and topped with a smooth buttercream frosting...perfect for Valentine's Day!
Prep Time30 mins
Cook Time9 mins
Refrigeration45 mins
Total Time1 hr 24 mins
Course: Dessert
Cuisine: American
Keyword: buttercream frosting, easy cookies, heart cookies, kefir, kefir cookies, pink frosting, raspberry frosting, sugar cookies, Valentine's day cookies
Servings: 20 cookies


Sugar Cookies

  • cup flour
  • ½ tsp baking powder
  • ¼ tsp baking soda
  • 1 tsp cream of tartar
  • ½ tbsp cornstarch
  • ½ tsp salt
  • ½ cup unsalted butter room temperature
  • ½ cup powdered sugar
  • ½ cup granulated sugar
  • ¼ cup brown sugar
  • 1 large egg
  • ½ tsp vanilla extract
  • tsp almond extract
  • cup Lifeway mixed berry Kefir

Buttercream Frosting

  • ½ cup unsalted butter
  • cup powdered sugar
  • 1 tsp vanilla extract
  • 1 tbsp mixed berry kefir
  • 1-2 tbsp raspberry juice or 1-2 drops red food coloring


Heart Sugar Cookies

  • Add flour, baking soda and baking powder, cream of tartar, cornstarch, and salt to a medium sized bowl. Whisk until combined.
  • Meanwhile, cream the butter, powdered, granulated, and brown sugars together in the bowl of your stand mixer until smooth (use the paddle attachment).
  • Add the egg, vanilla, and almond extracts and mix in. Lastly add in the mixed berry Kefir. Mix until combined and smooth. 
  • Add the dry ingredients from step 1 to the wet ingredients in your stand mixer bowl, and mix with the paddle attachment on low until it is combined. Mixture will be somewhat crumbly. Use clean hands to smash the dough together into a large ball, and wrap it in plastic wrap. Flatten it into a disc shape. Refrigerate the dough for 45 minutes.  
  • Remove from refrigerator. Preheat your oven to 375F. Roll out the dough onto a lightly floured surface to about 1/4 inch thick. Use a heart cookie cutter (I used a 2.5-3 inch sized heart) to cut out heart shaped cookies. Place on parchment paper lined baking sheets, and bake for 9 minutes. Cookies will be a bit browned on the bottoms. Remove from sheets and let cool fully before frosting.

Pink Buttercream Frosting

  • Cream the butter in your stand mixer with the paddle attachment until smooth. Add 1/4 cup cup powdered sugar at a time while mixing on low until you've added 1 3/4 cups. Save 1/4 cup for later.
  • Next add in the vanilla extract and kefir and mix until smooth. If not thick enough add the 1/4 cup powdered sugar until spreading consistency. Now either add a drop of red food coloring or 2-3 tablespoons of raspberry juice (I just squeezed fresh raspberries for this) for a more pale pink color and mix until uniform.
  • Use a spatula to spread as much or as little frosting as you'd like on the cookies. Cover with sprinkles and enjoy!