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

Heat oven to 400 degrees. Mix 1 1/2 cups sugar, the butter, shortening, and eggs. Stir in flour, cream of tartar, baking soda, and salt. Shape dough by rounded teaspoonfuls into balls. Mix 2 tablespoons sugar and the cinnamon; roll balls in mixture to coat. Place about 2 inches apart on ungreased cookie sheet. Bake until set, 8 to 10 minutes. Immediately remove from cookie sheet. About 6 dozen.

If using self-rising flour, omit cream of tartar, baking soda, and salt.