Broiled Mackerel with Black Butter

Take some mackerel, open and remove the bones, spread a little butter and
sprinkle some pepper and salt over them. Place the fish on a gridiron and broil over
a clear fire. Put a pat of butter in a saucepan and stir it over the fire until it is richly
browned, then squeeze in some lemon juice. Place the fish on a hot dish, arrange
some sprigs of parsley around, pour over the butter and serve while it is very hot.