Cooking

Cooking is a skill that allows a player to cook raw food into food that you can eat. Cooking goes hand in hand with the fishing skill as the player can cook the fish they obtain shortly after a full inventory is made. If no stove/range is nearby, having a hatchet and tinderbox equipped can allow the player to cut down a tree and make a fire to cook the fish on (however, there is less chance of burning the food if it is used on a range!). By levelling up cooking the player is able to cook the more profitable foods such as lobsters, swordfish, monkfish and shark. By eating cooked food you gain lost hitpoints which is useful for training your combat skills. Lobsters are popular among players that wish to train their combat as they heal a great deal of lifepoints and are considerably less expensive than sharks.

Burning Food
As players train cooking, they will sometimes fail too cook something at random. It is normal when you first begin training this skill to burn nearly anything you put before a fire or range, but as you gain more levels the burn ratio of food descreases until you reach the level where you can no longer burn them.

A useful item to equip while training are Cooking Gauntlets. Wearing these gloves while training cooking will cut down time and money due to less food being burnt. This is useful for food such as sharks where even at 99 you have the chance to burn them. With the Cooking Gauntlets equipped you will stop burning sharks at level 94.

A table of successful cooking here.