Mary'S Peanut Butter Cookies
["1 egg, slightly beaten", "1/2 c. peanut butter", "1/2 c. shortening or butter", "1/2 c. sugar", "1/2 c. brown sugar, firmly packed", "1 1/4 c. flour (self-rising)", "pinch of soda", "pinch of baking soda", "1 tsp. vanilla"]
["Spoon dough onto cookie sheet and bake at 300\u00b0 for about 10 minutes."]
["egg", "peanut butter", "shortening", "sugar", "brown sugar", "flour", "soda", "baking soda", "vanilla"]