Mix 11/2 cups sugar, margarine, cream cheese and eggs in a bowl. Stir in flour, cream of tartar, baking soda and salt.
Cover and refrigerate dough for one hour.
Shape dough into 11/4 inch balls. Mix 1/4 cup sugar and the cinnamon. Roll the balls in the cinnamon-sugar mixture. Place 2 inches apart on ungreased cookie sheet.
Flatten each ball with the bottom of a drinking glass.