Snickerdoodles

1/2 cup butter or margarine, softened
1/2 cup shortening
1 1/2 cups sugar
2 eggs
2 3/4 cups flour
2 teaspoons cream of tartar
1 teaspoon soda
1/4 teaspoon salt
2 tablespoons sugar
2 teaspoons cinnamon

Heat oven to 400 degrees. Mix thoroughly butter, shortening, 1 1/2 cups sugar and the eggs. Blend in flour, cream of tartar, soda and salt. Shape the dough by rounded teaspoonfuls into balls the size of small walnuts. Mix 2 tablesppons sugar and the cinnamon. roll the balls in the sugar-cinnamon mixture and place them about 2 inches apart on an ungreased baking sheet. Bake 8 to 10 minutes or until set. (the cookies puff up first, then flatten out. )Immediately remove the cookies from the baking sheet. Makes about 6 doz. cookies.