Boil the water or milk and water. Pour it into a bowl and add the salt, sugar, and fat. Stir until the salt and sugar are dissolved, and the fat is melted. Mix the yeast with lukewarm water. When the first mixture is cooled to lukewarm temperature, add the yeast mixture to it. Then add flour enough to make it of the proper consistency (see Stiff Dough), using a knife for mixing. Turn out on a floured board, and knead until soft and elastic. Return the dough to the bowl, moisten, cover, and let rise until doubled in bulk. Then divide it into loaves, or shape into biscuits. Cover and allow the loaves or biscuit to rise in the pan in which they are to be baked until they are doubled in bulk. Bake the biscuits 30 minutes in a hot oven and the bread about 60 minutes in a moderate oven.