Peanut Butter Cookies
["1/2 c. butter", "1/2 c. peanut butter", "1/2 c. white sugar", "1/2 c. brown sugar", "1 egg", "1/2 tsp. vanilla", "1/2 tsp. baking soda", "1 c. flour"]
["Cream together the butter and peanut butter.", "Beat in white sugar and brown sugar.", "Stir in egg, vanilla, baking soda and flour.", "Arrange by teaspoon on cookie sheet.", "Press flat with a floured spoon or mark with a fork.", "Bake until firm, 10 minutes, at 350\u00b0."]
["butter", "peanut butter", "white sugar", "brown sugar", "egg", "vanilla", "baking soda", "flour"]