Peanut Butter Cupcakes
["1/2 c. butter or margarine", "1 1/2 c. brown sugar", "1/2 c. peanut butter", "1 tsp. vanilla", "2/3 c. milk", "2 eggs, beaten", "1 1/2 c. cake flour", "1/2 tsp. salt", "2 tsp. baking powder"]
["Cream butter and sugar; add peanut butter and add vanilla and eggs.", "Beat well.", "Add flour, salt and baking powder alternately with milk.", "Fill cupcakes 3/4 full.", "Bake at 350\u00b0 for 30 minutes."]
["butter", "brown sugar", "peanut butter", "vanilla", "milk", "eggs", "cake flour", "salt", "baking powder"]