This humble sandwich started as a way of using up leftover ham after large family dinners, but the combination of tender and flaky biscuits and salty ham makes this sandwich worthy of an effort all its own. For those of us who aren't lucky enough to have a leftover ham in our fridge, any ham that fits your preference will work (honey roasted, jamón Serrano, black forest)—in fact, some good-looking bacon will work in pinch as well. More