1 pkg. dry yeast
3 c. rye flour
1 c. Sourdough Starter
1/4 c. sugar
3 tbsp. butter
2 tsp. caraway seeds
3 c. unbleached flour
1/2 tsp. baking soda
2 tsp. salt

In large bowl, soften yeast in 1 1/2 cups warm water. Blend in rye flour, Sourdough Starter, sugar, butter, caraway seed, and 2 teaspoons salt. Beat well.

Combine 1 cup white flour and soda; stir into flour and yeast mixture. Add enough remaining flour to make a moderately stiff dough. Knead on floured surface 5 minutes.

Place in greased bowl, turning once. Cover; let rise 1 1/2 hours. Punch down, divide in half. Cover and let rise 10 minutes. Shape into 2 loaves; place in greased loaf pans. Cover and let rise 45 minutes. Bake at 375 degrees for 35-40 minutes. Remove from pans; cool.