Rocktail soup is made from one 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. An xp-boost from a clan avatar will 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 15%.
It is produced from spices obtained from Player-owned ports and a cooked rocktail. A dilapidated workshop must be upgraded to the refitted version (500 slate and 2000 Bamboo), unlocking a cooking station and a bank in the workshop.