What's the best (fastest, most efficient) way to make breadcrumbs from scratch, without having any old bread?
I'm curious if there's something quick I can do, when I realize I want 5 cups of breadcrumbs and have no old bread, and don't want to buy or bake a loaf of bread just to immediately pulverize it.
That is, what is the fastest, simplest, easiest bread-like thing one could make, which would turn into breadcrumbs in a food processor?
One more edit: I didn't really intend this to be asking "what other ready-made things can I buy (or have around) and turn into breadcrumb substitutes". I want to know, at the very least, the best way to streamline the process of making and drying bread given the fact that I don't care if it's ever moist enough to eat as bread, and don't care about its overall shape or texture or anything else we usually care about in bread.