Imperial Cookies
["2 sticks Imperial margarine", "3/4 c. sugar", "1/2 tsp. soda", "1 tsp. vanilla", "1 1/2 c. flour", "1/2 tsp. vinegar"]
["Cream margarine and sugar; add soda and vinegar, then vanilla and flour.", "Drop by teaspoon on ungreased cookie sheet and bake for about 15 minutes at 300\u00b0."]
["margarine", "sugar", "soda", "vanilla", "flour", "vinegar"]