Take 3 red herrings

From 1922:

Take 3 red herrings (large), 1 well-beaten egg, ¼ lb. butter, 2 tablespoonfuls of milk, a little cayenne. Soak the herrings in boiling water for a few minutes, skin and bone them, mix to a smooth paste (or put through a mincer), place in a saucepan with other ingredients, and boil for three minutes. Put away in small covered glasses.