Give The Soup to the Cook in One Piece Odyssey: To In

After the soup challenge with Sanji and the cook of the Spice Bean, you'll need to collect Sandy Shells and Scorpion Legs.

To get Sandy Shells, return to the main harbor where you started the chapter. Head through the west gate, follow the road around the curved rock walls, and go to the small beach where the ship is docked. Walk along the coast with Sanji and pick up the loot on the sand.

To get Scorpion Legs, head west from the Spice Bean tavern towards the Desert Near Nanohana. Follow the sandy road out of town, go through the cave, and emerge on the other side.

Head towards the scorpions in the distant dunes. Engage one in combat, preferably by sneaking up on it.

Defeat the scorpions and any other enemies. After the battle, check the loot window in the bottom left of the victory screen to ensure you have obtained the Scorpion Legs. If not, you will need to fight more scorpions. The quest marker updates after defeating Red Scorpions, not upon collecting the legs, so be sure you have the item before proceeding.

Once you have both Sandy Shells and Scorpion Legs, return to the Spice Bean tavern.

Interact with the cook to complete the quest. This action will unlock the cooking feature in the game.