Frost Cookies
["1 c. white sugar", "1/2 c. shortening", "1 1/2 c. flour", "1 tsp. baking soda", "2 eggs, separated (save the egg white)", "1/2 tsp. salt", "1/2 tsp. vanilla"]
["Cream shortening and sugar.", "Add beaten egg yolks and the sifted dry ingredients.", "Add vanilla.", "Mix well and spread the beaten butter into a baking sheet as thin as possible."]
["white sugar", "shortening", "flour", "baking soda", "eggs", "salt", "vanilla"]