2. Pour oil into a medium wide pot to a depth of 2" and heat over medium heat until hot but not smoking, 350º on a candy thermometer. Meanwhile, put bread crumbs into a dish and carefully dredge patties. Working in batches to avoid crowding the pot, fry patties, turning once, until deep golden and crisp, 3-5 minutes. Transfer patties with a slotted spatula to paper towels to drain.