Beef Marrow on Toast

Take some large pieces of marrow and put them in a saucepan of well salted
boiling water, and let them remain for one minute, then drain off the water through
a very fine sieve. Take out the marrow, put it on some pieces of toasted bread, place
them in the oven, and cook for five minutes. Sprinkle over them chopped parsley,
salt and pepper, and serve very hot.