Rocktail soup (or Eastern soup in the cooking menu) is made from one cooked Rocktail and one Spice. It is the highest healing tradeable food in the game. It can only be made after obtaining the full Rocktail Soup Recipe Scroll from Player-owned ports. It requires a Cooking level of 93 to make. Players must have the necessary level - boosts will not work. This soup cannot be burnt when being made. When made, it gives 500 base cooking experience, and the workshop boost of at least 5% will also apply. Experience boosts from a clan avatar buff or from an outfit work, but cooking urns do not.
It can be eaten in the Wilderness. It heals a maximum of 2100 (with a Constitution level of at least 95) and can boost a player's life points by an extra 10%.