Easy Pineapple Upside-Down Cake
["9 oz. can crushed pineapple", "1/4 c. soft butter", "1/2 c. brown sugar, packed", "1 c. sugar", "3 tsp. baking powder", "1 tsp. salt", "2 c. sifted flour", "1/3 c. soft shortening (part butter)", "1 egg", "1 c. milk", "1 tsp. vanilla"]
["Heat oven to 350\u00b0.", "Grease a square 9 x 9 x 3/4 inch pan or a 10 inch skillet.", "Mix undrained pineapple, butter, brown sugar, and spread in bottom of pan or skillet.", "Sift flour, sugar, baking powder, and salt into a bowl.", "Add shortening, egg, milk, and vanilla.", "Beat 2 minutes on medium speed or 300 vigorous strokes by hand.", "Scrape sides and bottom of bowl constantly.", "Bake 45-50 minutes."]
["pineapple", "butter", "brown sugar", "sugar", "baking powder", "salt", "flour", "shortening", "egg", "milk", "vanilla"]