Preheat oven to 350 degree.
1/2 cup butter (softened)
1/2 cup Crisco butter shortening
1 1/2 cups sugar
2 eggs
1 teaspoon vanilla
2 3/4 cups flour
1/2 teaspoon cream of tartar
1 teaspoon baking soda
1/2 teaspoon salt

Mix sugar and shortening in a large bowl, until well blended.
Then add eggs, mix well, and then vanilla.
In another bowl, mix all dry ingredients.
Now add dry ingredients into shortening mixture.
Mix very well.
Refrigerate dough for about 1 hour, this makes it easier to roll and work with.
Mix together 2 tablespoons sugar and 1 teaspoon cinnamon in a small bowl.
Roll dough into small balls, one at a time, and then roll them in the cinnamon sugar mixture until well coated.
Place on an ungreased cookie sheet.
Bake for 10−12 min.
They will look uncooked as they will not turn brown, and will complete cooking as they cool.