If you don’t make your own (a blender and two day old bread – simple) always buy unseasoned breadcrumbs and use your own seasoning. To toast – put about a tablespoon of olive oil in a heavy frying pan on medium heat. Add a cup of the unseasoned bread crumbs and keep them moving until they darken. Don’t walk away to do something else because they’ll burn. When they reach the right color remove them from the pan immediately or they’ll keep cooking. They should smell like toast, not burnt toast. You can use this on many pastas in place of cheese and there are some sauces where you can only use toasted breadcrumbs – fish sauces like pasta con sarde or baccala.