01 -
Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
02 -
In a medium bowl, whisk together flour, baking soda, baking powder, and salt.
03 -
In a large bowl, cream together the softened butter and granulated sugar until light and fluffy.
04 -
Beat in the egg, vanilla extract, and sour cream until well combined.
05 -
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
06 -
Scoop tablespoon-sized portions of dough onto the prepared baking sheet, spacing them about 2 inches apart.
07 -
Gently flatten each cookie with the bottom of a glass.
08 -
Bake for 10-12 minutes, or until the edges are set and the cookies are lightly golden. Allow to cool completely on a wire rack.
09 -
In a bowl, beat the softened butter until creamy.
10 -
Gradually add powdered sugar, milk, and vanilla extract, mixing until smooth.
11 -
Add food coloring if desired and mix until well combined.
12 -
Frost the cooled cookies and add sprinkles if desired.