1 c. butter, softened
1 1/2 c. granulated sugar
2 eggs
2 3/4 c. all-purpose flour
2 tsp. cream of tartar
1 tsp. baking soda
1/4 tsp. salt
2 tbsp. granulated sugar
2 tsp. ground cinnamon

In a large mixing bowl with electric mixer at medium speed, cream butter, 1 1/2 cups sugar and eggs until light and fluffy.

In another bowl combine flour, cream of tartar, baking soda and salt. Add flour mixture to creamed mixture; blend well. Refrigerate dough 30 minutes.

In a shallow dish combine 2 tablespoons sugar and cinnamon. Shape dough into 2-inch balls and roll balls in sugar-cinnamon mixture. Place balls 3 inches apart on a greased cookie sheet (between 6-9 cookies on a sheet). Bake at 375 degrees for 12-15 minutes. Transfer to wire racks to cool.