Salt pork, a fattier and saltier cousin of bacon, definitely falls under the heading of unexpected when it comes to cake ingredients. Then again, bacon is the consummate salty companion to anything sweet, so it shouldn't come as that much of a surprise. Pork cake was known as a "war cake" -- desserts that substituted unusual ingredients for rationed butter and eggs. Don't be fooled, though. While many unexpected flavors disappear into the overall taste, that's not the case with pork cake. Only lovers of swine should give this one a try.