Pineapple Upside-Down Cake
["6 canned pineapple slices", "6 maraschino cherries", "1 c. chopped walnuts, divided", "1 pkg. (18.25 oz) white cake mix"]
["Preheat oven at 350\u00b0.", "Place pineapple slices in a greased and floured 10 inch tube pan.", "Place a cherry in the center of each slice.", "Sprinkle half of the walnuts around the pineapple.", "Prepare cake mix according to package directions; spoon batter over pineapple layer.", "Sprinkle with remaining nuts.", "Bake for 40 to 45 minutes or until a toothpick inserted near the center comes out clean.", "Cool for 10 minutes before inverting onto a wire rack to cool completely."]
["pineapple", "maraschino cherries", "walnuts", "white cake"]