Salmon Fish Balls

These fish balls are very light and creamy as they contain no potato and instead have a base of béchamel sauce. They are sophisticated enough to serve at a dinner party either as a hot first course or as a main course, accompanied by a mixed green salad. Prepare the mixture well in advance as it must chill thoroughly so you can form the fish balls easily. A mixture of salmon and smoked haddock is also delicious.