Sand Cookies
["2 sticks (1/2 lb.) margarine, softened", "3/4 c. sugar", "1 tsp. baking soda", "1 tsp. vinegar", "1 tsp. vanilla", "1 1/2 c. flour", "1/2 bag miniature chocolate chips"]
["Beat margarine and sugar for 5 minutes.", "Dissolve soda in vinegar and add to margarine mixture.", "Add vanilla; beat in flour. Add chocolate chips.", "Drop by teaspoonful onto ungreased cookie sheets.", "Bake at 275\u00b0 for 30 minutes."]
["margarine", "sugar", "baking soda", "vinegar", "vanilla", "flour", "chocolate chips"]