This is my Mom’s recipe.

1/2 cup butter
1/2 cup shortening
1 1/2 cup sugar
2 large eggs
1 tsp vanilla
2 3/4 cup flour
2 tsp cream of tartar
1 tsp baking soda
1/2 tsp salt
 For outside of cookies : 3 tbsp sugar and 2 tbsp cinammon ( approx)


Cream butter and shortening together then beat in sugar and then beat in eggs. Stir in vanilla.
Mix dry ingredients together and then stir into wet ingredients.
Chill for an hour and make round balls with  about 1 tsp of mixture  and then roll each in sugar cinamon mix.
Put about 2 inches apart on cookie sheet and bake at 400 degrees for about 6 minutes