Food is an edible item in AoA (Age of Aincrad). It's prepared by players who have the Cooking skill. Food has many different effects, such as increasing the players' maximum HP (Health Points) for a limited time, or it buffs the players' strength for a short while.
To prepare food, a player needs to find a recipe which allows him/her to make it as soon as he/she gathers the ingredients needed for it. Then he/she goes and prepares it in a place suited for cooking.
Food recipes can be found in chests, received by trading, dropped from monsters, looted from other players dead bodies, stolen from them, bought on the market, received as a quest reward from NPCs, or even dropped by bosses. Usually the most rare kind of recipes drop only from bosses and are very expensive.