Sugar Cookies - cooking recipe

Ingredients

1/2 c. margarine
1/2 c. shortening
1/2 c. brown sugar
1/2 c. white sugar
1 egg
1 tsp. cream of tartar
1/2 tsp. salt
2 1/2 c. flour
1/2 tsp. vanilla
1 tsp. soda

Preparation

Cream together margarine, shortening, brown sugar, white sugar and egg.
Add remaining ingredients and mix well.
Form into balls; roll in sugar and lightly press with bottom of a glass on greased cookie sheet.