This soup features a gingery quenelle-like seafood dumpling. In Japan it is usually served in a covered bowl; when you remove the lid and see the dumpling, it’s as if you have discovered a pearl in an oyster.
Make the seafood forcemeat: Rinse the scallops to make sure no grit clings to them. Pat them dry. Cut the turbot or sole into 1-inch pieces. In a food processor fitted with the metal blade, pulse/process the scallops and fish to make a smooth paste.