• Preheat oven to 350 degrees F.
• With your mixer, cream together ½ cup softened butter with 1 cup granulated sugar and mix for 2-3 minutes, until smooth.
• Add in sour cream, eggs and vanilla and mix well.
• In a large bowl, sift together flour, baking powder, baking soda and salt.
• Slowly add the dry ingredients into the wet and mix.
• Measure three tablespoons of cookie dough for each cookie then use your hands to roll the cookie dough into a smooth ball.
• Place on uncreased cookie sheets leaving 1 inch between each cookie. Use your hand to lightly flatten the dough a bit.
• Bake for 11-12 minutes then immediately remove from the oven. The cookies will appear under-baked but this is what you want. Carefully transfer the cookies to a cooling rack and repeat the process until the dough is gone.

Frosting Directions

• Beat butter with a mixer for about 30 seconds, then add in powdered sugar one cup at a time. Add in vanilla and 1-2 tablespoons of milk until light and fluffy.
• Use a knife to slather each cookie with frosting. Top with Christmas sprinkles.