2 3/4 cups sifted flour 
2 teaspoons cream of tartar 
1 teaspoon baking soda 
1/2 teaspoon salt 
1 cup shortening 
1-1/2 cups granulated sugar 
2 eggs, unbeaten 
2 tablespoons granulated sugar 
2 teaspoons cinnamon 

Sift together flour, cream of tartar, baking soda and salt. Cream shortening with 1-1/2 cup sugar and eggs until very light and fluffy. At low speed blend in flour mixture until batter is dough-like. Chill until easy to handle. Heat over to 400 degrees. Form dough into walnut sized balls; roll in sugar and cinnamon mixture. Place 2" apart on ungreased cookie sheet. Bake 8-10 minutes or until browned.