Put liquid, sugar, shortening, and salt in the mixing bowl; when lukewarm add the yeast cake (which has been dissolved in lukewarm water); add flour and knead well. The exact amount of flour will depend upon the quality; but enough should be used to make a smooth, soft dough which after kneading is not sticky. Cover, and let rise in a warm room until double in bulk; cut down, knead well, and shape into loaves; cover, let rise until double in bulk, and bake in a hot oven about fifty minutes. To hurry the rising of the bread increase the quantity of yeast. Bread mixed with two yeast cakes may be made and baked in about three hours.