Buttermilk Cookies

Buttermilk Cookies
1/2 c butter, softened
1 c sugar
1 egg
1 t vanilla
2 1/2 c flour
1/2 t baking soda
1/2 t salt
1/2 c buttermilk
Frosting:
3 T butter, softened
3 1/2 c powdered sugar
1/4 c milk
1 t vanilla

1. Preheat oven to 375* and grease a cookie sheet.
2. In a large bowl, combine butter and sugar; beat in egg and vanilla.
3. In a small bowl, sift together flour, baking soda, and salt; alternate adding dry mixture and buttermilk into wet mixture.
4. Drop dough on to cookie sheet and bake for 10-12 minutes.
5. To make the frosting, whip together butter, sugar, milk, and vanilla.