Peanut Butter Cookies
["2 c. flour", "1 tsp. baking powder", "1/2 tsp. baking soda", "1/4 tsp. salt", "1 c. powdered sugar", "1/2 c. oil", "1/2 c. peanut butter", "6 Tbsp. unsalted butter", "1/2 c. brown sugar", "1 large egg", "1 1/2 tsp. vanilla"]
["Sift flour, powders, salt and soda; set aside.", "Sift powdered sugar.", "Mix oil, peanut butter and butter and blend.", "Add sugars and beat until fluffy.", "Add in powders.", "Roll into balls.", "Flatten with a fork and space onto greased cookie sheet.", "Place into oven preheated at 350\u00b0.", "Cook at least 12 minutes."]
["flour", "baking powder", "baking soda", "salt", "powdered sugar", "oil", "peanut butter", "unsalted butter", "brown sugar", "egg", "vanilla"]