In a large mixing bowl, combine 2 cups flour, yeast, sugar, salt and baking soda. Add warm milk and water; beat on low speed for 30 seconds, scraping bowl occasionally. Beat on high for 3 minutes. Stir in remaining flour (batter will be stiff).
Do not knead. Grease two 8-1/2-in. x 4-1/2-in. x 2-1/2-in. loaf pans. Sprinkle pans with cornmeal. Spoon batter into the pans and sprinkle cornmeal on top. Cover and let rise in a warm place until doubled, about 45 minutes.
Bake at 375 degrees F for 35 minutes or until golden brown. Remove from pans immediately to cool on wire racks.
5 cups all-purpose flour, divided
2 (.25 ounce) packages active dry yeast
1 tablespoon sugar
2 teaspoons salt
1/4 teaspoon baking soda
2 cups warm milk (110 to 115 degrees F)
1/2 cup warm water (120 to 130 degrees F) Cornmeal