At Bunk Sandwiches in Portland, Oregon, Tommy Habetz lets customers add bacon, pickled chilies, or marinated anchovies to any sandwich. Add all three and he actually offers a discount – that's how much he believes in piling on flavor. "You get all those elements of smoky, salty, sweet, spicy – they do everything you want flavor to do," Habetz says. If you're not feeling that bold, any one of the three will do – and they're not hard to doctor up. Habetz recommends buying decent pickled chilies or anchovies, draining them, and remarinating them in good olive oil with a little crushed garlic and sprigs of thyme.