Peanut Butter Brownies
["1/3 c. butter", "1/2 c. peanut butter", "1 c. sugar", "2 eggs", "1/4 c. firmly packed brown sugar", "1 small pkg. semi-sweet chocolate morsels", "1 tsp. baking powder", "1/4 tsp. salt", "1 c. sifted flour", "1/2 tsp. vanilla"]
["Beat butter and peanut butter together until light.", "Gradually add sugar and brown sugar, creaming well.", "Add eggs, one at a time, beating well after each addition.", "Add flour, baking powder and salt, mixing well.", "Add chocolate morsels and vanilla.", "Spread mixture in a well-greased 9-inch pan.", "Bake at 350\u00b0 for 30 to 35 minutes."]
["butter", "peanut butter", "sugar", "eggs", "brown sugar", "semi-sweet chocolate morsels", "baking powder", "salt", "flour", "vanilla"]