4 c. buttermilk
1 tsp. baking soda
2 c. water
2 cakes yeast
2 tbsp. shortening
2/3 c. sugar
2 tbsp. salt
1/2 c. molasses (optional)
5 c. rye flour
10 to 11 c. white flour

Dissolve yeast in 1/2 cup warm water with 1 teaspoon sugar. Mix shortening, salt, molasses and water. Bring to a boil. Remove from heat. Add buttermilk and soda. Add rye flour. Beat well. Add yeast. Add white flour and knead. Let rise until doubled. Put in pan and let rise again. Makes 5 loaves. Bake 1 hour at 375 degrees.