You'll need to learn it, but you can wake it up with a heal spell. Or a potion of energy, or sweets. But if you don't have any cookies, you can buy them from an NPC, a merchant altar, or steal cookies from a table (be careful, the chef will occasionally attack you). Also, although I don't recommend it, you can sometimes get cookies as a reward from an NPC by taking a walk as a prisoner, so it might be worth trying.