Dissolve yeast in warm water in large bowl. Stir in milk, sugar, salt, 3 eggs, margarine, and 3 cups flour. Beat until smooth. Stir in enough remaining flour to make dough easy to handle. Turn dough onto lightly floured surface. Knead until smooth and elastic, about 5 minutes. Place in creased bowl. turn greased side up. Cover. Let rise in warm place until double 1.5 - 2 hours. Dough is ready if indentations remain when touched.

Punch down. Divide in half. Shape into rounded flat loaves. Place each loaf in greased round layer cake pan. cover and let rise until double in size. Heat oven to 350 degrees. Brush with slightly beaten egg and dust with sugar. Bake until loaves are golden brown, 35-45 minutes.