Rub through a sieve boiled rice, add it to dry flour, salt, baking powder. Beat separately the yolks and whites of the eggs; add milk to the yolks, work it into the flour, then add melted butter; beat the whites of eggs thoroughly; mix the whole together. Heat the waffle-iron and grease it evenly; pour the batter into the half of the iron over the range until nearly two-thirds full, cover, allow to cook a moment, then turn and brown slightly on the other side.
The White House Cookbook (1887).