This recipe is compliments of McCormick. I find all kinds of good things on their website.
2 3/4 cups flour
2 tsp Cream of Tartar
1 tsp baking soda
1 tsp salt
1 1/2 cups sugar
1 cup b utter (softened at room temp)
2 tsp Vanilla Extract
Mix flour, cream of tartar, baking soda, and salt in large bowl. Set aside. Beat sugar and butter in large bowl with electric mixer on medium speed until light and fluffy. Add eggs and vanilla; mix well. Gradually beat in flour mixture on low speed until well mixed. Refrigerate 2 hours or until firm.
Shape dough into 1" balls. Roll in additional sugar to coat. Place 2" apart on ungreased baking sheets.
Bake in preheated 400 degree oven 6 - 8 minutes or until lightly browned. Cool on baking sheets 1 minute. Remove to wire racks; cool completely.