In small saucepan, heat milk and 1/3 cup margarine until very warm (120 to 130°F.). Add warm liquid and eggs to flour mixture; blend at low speed until moistened. Beat 3 minutes at medium speed. By hand, stir in remaining 2 to 2 1/2 cups flour to form a stiff dough. Place dough in greased bowl; cover loosely with plastic wrap and cloth towel. Let rise in warm place (80 to 85°F.) until light and doubled in size, 35 to 50 minutes.