4 c. butter
4 c. shortening
1 egg
1 1/3 c. flour
1 tsp. cream of tartar
1/2 tsp. baking soda
1/4 tsp. salt
2 tsp. sugar
2 tsp. cinnamon

Heat oven to 400 degrees. Mix thoroughly shortening, sugar, and egg. Sift together dry ingredients. Blend the 2 mixtures. Roll dough into balls about the size of walnuts. Roll balls into mixture of sugar and cinnamon. Place 2 inches apart on ungreased cookie sheet. Bake 6-8 minutes.