Butterscotch Brownies
["1/4 cup butter", "1 egg", "1 tsp baking powder", "1/2 tsp vanilla", "1 cup brown sugar", "3/4 cup flour", "1/2 tsp salt", "1/2 cup nuts, chopped"]
["Preheat oven to 350\u00b0.", "Melt butter over low heat.", "Blend in sugar. Cool.", "Stir in egg, flour, powder and salt.", "Mix in vanilla and nuts.", "Spread in well greased square pan.", "Bake for 25 minutes. Do not over-bake!"]
["butter", "egg", "baking powder", "vanilla", "brown sugar", "flour", "salt", "nuts"]