This is an essentially Flemish soup. One uses carp, eels, tench, roach, perches, barbel, for the real waterzoei is always made of different kinds of fish. Take the fish, cut off the heads and tails, which you will fry lightly in butter, adding to make the sauce a mixed carrot and onion, cloves, white pepper, parsley, thyme, bay-leaf. Pour in two-thirds of water and one-third of white wine till it more than covers the ingredients and let it simmer for half-an-hour. Then the pieces of fish must be cut an equal size, and they are placed to cook quickly in this liquor for twenty minutes.
Five minutes before serving add a lemon peeled and cut into slices and the pips removed. Some people bind the sauce with breadcrumbs grated and browned. You serve, with this dish, very thin slices of bread and butter. For English tastes, the heads and tails should be removed when dressing the dish.