Pineapple Upside-Down Cake
["1 stick butter", "1 c. firmly packed brown sugar", "1 (20 oz.) can crushed pineapple", "1 box Pillsbury cake mix"]
["Preheat oven to 350\u00b0.", "Mix together cake mix as directed on box; set aside.", "In large skillet, mix together butter, sugar and pineapple using only 1/2 of juice for pineapple.", "Pour cake batter over mix in skillet.", "Bake in 350\u00b0 oven about 45 minutes."]
["butter", "brown sugar", "pineapple", "cake mix"]