Sand Tarts

1 c. margarine
½ t. baking soda
1½ c. flour
¾ c. sugar
½ t. vinegar
1 t. vanilla
¾ c. sugar
½ t. vinegar
1 t. vanilla

Mix in mixer. Cream margarine and sugar. Add vanilla, vinegar. Add flour and baking soda. Drop by teaspoons on ungreased cookie sheet. Bake at 300 degrees for 20-25 minutes. Make 2 to 2 ½ dozen.