Dissolve yeast in 3/4 C warm milk that has been mixed with 2 T sugar - Let stand 20 mins.
Mix butter, salt, sugar. Pour 2 C scalded milk over and mix well. Add molasses and 2 1/2 C lukewarm water.
When above mixture has cooled so it's not too hot, mix in the yeast and then add 3 C slightly heaped medium rye organic flour, mixing well.
Add 10-12 C white stone ground flour to above. Mix well with heavy spoon or dough hook. Flour a surface and knead dough for 10 mins. Cover with cloth and let rise for 1 1/2 hours in a warm place free from drafts.
Punch dough down & knead again.
Grease pans with Pam, fill half full with dough, then allow to rise again covered with towel for 30 minutes. (After 15 minutes, rotate pans & place back ones in front.)
Butter tops before baking.
Bake in oven 50-60 mins. at 350 degrees.