Ever since canned pineapple became widely available in the early 1900s, pineapple and upside-down cake have become practically synonymous. But there was a time when this cake was made with seasonal fruit such as apples. After testing a few recipes, however, it was clear why sweet, juicy pineapple had overshadowed the humble apple. Rather than a luscious topping full of deeply fruity flavor, the apple slices tasted bland and watery. Here, the folks from America's Test Kitchen restore apple-pie order to this upside-down cake. Watch this video for step-by-step instructions or get the recipe at America's Test Kitchen (free registration required). More