Mix a gill of brewer's yeast, free from bitter, with two quarts of water, just lukewarm, to which add sufficient flour to make a thinnish batter, and let it stand six hours in a warm place, when stir it well with a wooden spoon, and let it remain four hours longer; have the muffin-stove hot, upon which lay a number of tin hoops, the size of crumpets, pour a small ladleful of the batter into each hoop, and when the top is covered with small bladders, turn them quickly over (hoops and all) with a large palate knife, and in about five minutes afterwards they will be sufficiently baked.