Directions

1. Preheat your oven to 375°F. In a small bowl, mix together flour, baking soda, and baking powder on low speed. Set aside.
2. In a large bowl, mix together butter and sugar until smooth. Beat in the egg and vanilla.
3. Gradually mix in the dry ingredients. Add enough of the buttermilk to moisten the dough and make it soft, but not wet.
4. Use a teaspoon to form small balls of dough and place on an ungreased cookie sheet.
5. Brush the top of each cookie with buttermilk and slightly flatten the top of each cookie.