06form the dough into a ball and put in a large buttered bowl, turning once to coat with butter on all sides.07cover the bowl with a towel and let rise for 45 minutes to an hour - till doubled (less time if using rapid rise yeast).08punch down dough and form into 2 oblong loaves or large braids.09put the loaves on buttered baking sheets, cover with a towel and let rise for 1/2 or till doubled.10beat together egg yolk and milk and brush the loaves with the glaze.11put them in preheated 425 degree oven and after five minutes turn down heat to 375 degrees.12bake loaves for 20-35 minutes more, till golden brown.