Scald brains with boiling hot water to cleanse thoroughly. Boil until
tender, in fresh cold salt water, being careful to remove from water
while it is yet firm. Slice lengthwise and lay in dish. Pour over
one-half cup of vinegar, which has been sweetened with a pinch of sugar
to remove sharp taste, pinch of salt and pepper. Garnish with parsley
and serve cold. Can also be served with mayonnaise.