In large bowl combine yeast, warm water, sugar & salt; stir until dissolved. Gradually add sifted flour & mix until well blended. Knead 10 minutes on well floured surface until dough is smooth & satiny. Let rise in warm place until double in bulk. Punch down & place on floured surface. Knead 3 or 4 times to remove air & divide into 4 equal pieces.

Shape into loaves, place in well greased pans. Slash tops & brush with egg whites. Let rise until double in bulk & bake 15 minutes in preheated 450 degree oven or 30 minutes at 350 dregrees. Remove from pans & cool. (Makes 4 loaves).

Note : wrap extra loaves in aluminum foil & freeze. To serve, warm in foil 20 minutes at 350 degrees.