1 c. butter, softened
2 c. sugar
3 eggs
2 tbsp. buttermilk
5 c. all-purpose flour
1 tsp. baking soda
1 tsp. vanilla

Cream butter, gradually add sugar, beating well. Add eggs, one at a time, beating well after each addition. Add buttermilk; beat well. Combine flour and soda; gradually stir into creamed mixture. Stir in vanilla. Chill dough several hours or overnight. Roll dough to 1/4" thickness on a lightly floured surface; cut into rounds with cookie cutter. Place 1" apart on lightly greased cookie sheet. Sprinkle with sugar. Bake 400 degrees for 7 to 8 minutes. Let cool completely.