In a bowl combine yeast and 1/4 cup warm water (about 115 degrees F). Let stand 5 minutes. Stir in milk, molasses, 1/4 cup brown sugar, the egg, oil, and 1/2 tsp. salt. Stir in as much flour as you can. Turn dough out onto floured surface. Knead in enough remaining flour for moderately soft, smooth, elastic dough (5 minutes). Shape in ball. Place in greased bowl; turn once. Cover; let rise until double (1 hour). Punch down. Turn onto lightly floured surface. Cover; let rest 10 minutes.