Snickerdoodles

1 ½ c. shortening
½ c. butter
2 eggs
1 ½ c. sugar
¾ c. flour
½ tsp. salt
1 tsp. baking soda
2 tsp. cinnamon
2 tsp. cream of tartar
1 tsp. vanilla

Cream shortening, butter, sugar, eggs. Sift in other ingredients. 400 degrees on ungreased cookie sheet for 8 ½ minutes.