It’s a simple recipe: bread, filling, bread. But sandwiches had to get their scrumptious start somewhere.

This week, we’re serving up an extra delicious dose of history. Joy Dolo and co-host Ben travel back to a time when putting food between two slices of bread was a culinary revolution. And reporter Tracy Mumford introduces us to two innovators - the one who did it first and the one who gets all the credit.

Plus, Brains On host Molly Bloom drops by the studio to treat Joy and Ben to some strange historical sandwiches. Have you ever heard of a sandwich… loaf? You can check out a photo here.