1/4 cup butter, softened
1/4 cup margarine, softened
1 cup sugar
1/4 tsp. cream of tartar
1/4 tsp. baking soda
1 large egg
1/2 tsp. vanilla
1 1/2 cups all purpose flour
4 Tbs. sugar
1 1/2 tsp. cinnamon
In a mixing bowl, beat the butter on medium speed for 30 seconds. Add the 1 cup sugar, baking soda, and cream of tartar. Beat until combined, scraping sides of bowl occasionally. Beat in the egg and vanilla until well blended. Beat in as much flour as you can with the mixer, and stir in remaining flour.
*Cover with plastic wrap and chill for 1 hour. Or place in freezer (in metal bowl) for 30 minutes.
Heat oven to 375.
Combine the 4 tablespoons sugar and 1 1/2 teaspoons cinnamon. Shape the dough into 1 inch balls and roll in cinnamon sugar mixture to coat.
Place balls of dough 2 inches apart on an ungreased cookie sheet.
Bake for 10 to 11 minutes or until edges are beautifully golden.
They come out in perfect, beautiful circles!