1/2 cup softened unsalted butter
1/2 cup shortening
1 1/2 cups white sugar
2 eggs
2 teaspoons vanilla extract
2 3/4 cups all-purpose flour
2 tsp cream of tartar
1 tsp baking soda
1/4 tsp salt
1 cup white sugar
1 cup ground cinnamon
Preheat oven to 400 degrees. Cream butter, shortening, 1 1/2 cups
sugar, the eggs and the vanilla. Blend in the flour, cream of tartar,
baking soda and salt. Spoon dough into balls. Mix the 2 tablespoons
sugar and the cinnamon. Roll balls of dough in mixture. Mix 1 cup
sugar and cinnamon in a large ziplock back. Shake each dough ball in
the bag to throughly cover. Place 2 inches apart on ungreased baking
sheets, flattened out. Bake for 8 minutes and no more. They will just
start to crack, any longer they will be to hard. Remove immediately
from baking sheets.