A book or an encyclopedia of recipes and cookery tips. / (by extension) Any book of strategies.

(computing) A token or short packet of data passed between communicating programs, used to identify a particular event or transaction; the data is typically not meaningful to the recipient program and not usually interpreted until the recipient passes the data back to the sender or another program at a later time.

(Internet) A packet of information sent by a server to a World Wide Web browser and then returned by the browser each time it accesses that server, used to maintain state between otherwise stateless HTTP transactions, for example, to identify the user.

(Canada, US) A small, flat, baked good which is either crisp or soft but firm.

(computing, transitive) To send a cookie to (a user, computer, etc.).

(dated, colloquial) Affectionate name for a cook.

(slang) A cucoloris.

(chiefly Britain) A device for heating food, a stove. / (chiefly Britain, except in compounds) An appliance or utensil for cooking food. / A cooking apple.

A type of hollow snack, common in westernized Chinese cuisine: a crisp sugary wafer containing a message on a narrow strip of paper, generally with a wise or vaguely prophetic message or random numbers usable in a lottery printed on the paper.

(idiomatic) One who is intelligent, bright, or sharp; especially, one who can identify attempts to deceive or mislead.