In a separate, medium-sized bowl, whisk together flour, baking powder, baking soda, and salt.
3 cups all-purpose flour, ¾ teaspoon baking powder, ¼ teaspoon baking soda, ½ teaspoon salt
Gradually stir dry ingredients into wet until well-combined.
Roll dough into 1 ½ Tablespoon-sized ball and place on prepared cookie sheet. Use your fingers to gently flatten (if dough sticks to your fingers, wet them first)
Bake on 375F for 6-8 minutes. If cookies puff while cooking, use the clean bottom of a glass to gently re-flatten. Allow cookies to cool while you prepare your frosting.
Frosting
Place butter in a medium-sized bowl and beat until creamy. Gradually add powdered sugar until combined. Stir in vanilla extract and salt.
½ cup unsalted butter, 1 cup powdered sugar, 1 teaspoon vanilla extract, ¼ teaspoon salt
Add food coloring and stir until even in color.
food coloring
Use a spatula to spread frosting evenly over cooled cookies. Decorate with sprinkles. Store cookies in airtight container.