Beat 3 minutes with a wooden spoon. Mix 1 c. flour and soda. Stir into above mixture. Knead until smooth and elastic adding remaining flour as needed. Shape into 2 oblong or 1 large round loaf.
Place loaves on baking sheet sprinkled with cornmeal and let rise until doubled.
Slash tops of loaves, and brush with egg wash if shiny crust is desired. Bake at 400 degrees for 20 minutes. Salt 1 scant tsp. Soda Into the sourdough, dump sugar, egg and oil. Mix well and add salt.