Considered a delicacy in Japan (called uni), sea urchin is a marine animal with a round and spiny hard shell. The edible portion is the gonads, which is served raw as sashimi or in sushi. It's also used in Mediterranean cuisines and in other parts of the world.
Popular in Chinese cuisine, it's a spicy, red-colored oil made by infusing vegetable oil with hot red chilies to release their flavor and heat.
A Swiss cow's milk cheese with a golden brown rind and a firm, pale yellow interior. It has a creamy texture and sweet, nutty flavor. It's good for both out-of-hand eating and cooking.
Also called trotters, pig's feet (including ankles) are bony, sinewy, and high in gelatin. They are sold pickled, smoked, and fresh. They are good in soups and stews and require long and slow cooking.