Blue crab

Blue crabs are pieces of food used in the Dungeoneering skill. Players can make them by cooking raw blue crabs on a fire or a range at 80 or higher Cooking. Blue crabs heal up to 2000 life points when eaten depending on your Constitution level. They are also used as a secondary ingredient in creating level 89 adept skinweaver pouches.

Blue crabs are too high of a tiered item to be dropped by monsters, but they can appear on the starting table upon entering a dungeon.

Blue crabs may be combined with baked cave potatoes to create a blue crab potato at 83 Cooking, and them either used with a gissel or edicap mushroom to create a blue crab & gissel potato (86 Cooking) or blue crab & edicap potato (89 Cooking) respectively. These combined foods heal many more life points than each individual component separately.

Trivia

 * This could be a reference to the real-life blue crab native to the Chesapeake Bay in Maryland in the United States.
 * Like all fish in Daemonheim, blue Crabs never stop burning, even with 99 Cooking, though using higher tier branches or cooking them on a range significantly reduces the chance of burning.
 * Blue crab is one of the Dungeoneering pieces of food (without potato) that cannot be received as monster drop, the other is cave moray.
 * Before the Evolution of Combat update, blue crabs used to heal 220 life points.