If you want to make your own panko breadcrumbs, cut a crustless loaf of bread into slices, then cut each slice into 3-4 strips. If you don’t have crustless bread, use a serrated knife to cut the crust off a regular loaf. Grate the bread strips with a grater or blend them in a food processor with the shredder attachment until you have large bread crumbs, then spread the flakes in an even layer on a rimmed baking dish. Bake the breadcrumbs at 250°F for 20-30 minutes, stirring every 5 minutes. Read on to learn how to store your panko breadcrumbs!