1 pkg. active dry yeast
5 to 5 1/2 c. all-purpose flour
1 c. starter (room temperature)
3 tbsp. sugar
2 tbsp. melted butter
1/2 tsp. baking soda
Yellow cornmeal
2 tsp. salt

In large bowl soften yeast in 1 1/2 cups warm water. Blend in 2 cups flour, sourdough starter, sugar, butter, and 2 teaspoons salt. Combine 1 cup flour and soda; stir into above mixture. Add enough remaining flour to make a moderately stiff dough.

Knead on floured surface until smooth. Place in greased bowl; turn once. Cover; let rise until double (1-1 1/2 hours). Punch down; divide in half; cover. Let rest for 10 minutes. Shape in 2 round loaves. Place on greased baking sheet. Sprinkle with cornmeal. Cover; let rise until almost double (about 1 hour). Brush with water and make slashes across top. Bake at 375 degrees for 30-35 minutes.