Filled Ham & Cheese Focaccia

This is a fun and easy way to make a focaccia you can serve as part of an assortment of first courses or as an hors d’oeuvre. The filling here is prosciutto and mozzarella with a sprinkling of Parmigiano-Reggiano. You could just as easily use boiled ham and Gruyère with excellent results. Or, make up a filling of your own—the techniques of filling, shaping, and baking can be applied to lot of different combinations. Just bear in mind that whatever you use to fill the focaccia must have an a