Add sugar or molasses and yeast to lukewarm water.
Dissolve about 15 minutes.
Add whole wheat flour and beat well.
Add salt and melted shortening and 1/3 of the white flour.
Keep adding flour to make a soft dough, easily handled when kneaded.
Cover and let rise until double in bulk.
Knead slightly and let stand 10-15 minutes.
Shape into loaves, cover and let rise again till double bulk (1 hour at least).
Bake for 1 hour at 400F (200C).