Black Walnut Pound Cake
["1 c. butter, softened", "1/2 c. shortening", "3 c. sugar", "5 eggs", "3 c. plain flour", "1/2 tsp. baking powder", "1 c. milk", "1 tsp. vanilla", "1 c. black walnuts, chopped"]
["Beat butter, shortening and sugar until soft and creamy.", "Add eggs, one at a time, beating until blended.", "Sift flour and baking powder.", "Add to creamed mixture alternately with milk.", "Stir in vanilla and nuts.", "Pour into a greased and floured 10-inch tube pan.", "Bake at 350\u00b0 for 1 hour and 30 minutes or until done.", "Cool in pan 10 to 15 minutes.", "Cool completely on a wire rack."]
["butter", "shortening", "sugar", "eggs", "flour", "baking powder", "milk", "vanilla", "black walnuts"]