This is the best traditional sourdough recipe around. The texture and flavor of the bread are just perfect!
Mix Sourdough starter, water, and 6 cups of flour thoroughly in large bowl. Allow to sit for 2-8 hours until actively bubbling. Pour sponge into mixing bowl, add sea salt and sugar. Slowly knead in remaining 4 cups of flour and continue to knead for 3-4 minutes. Place dough in well oiled bowl, turn to coat dough with oil. Set aside to rise for 1-2 hours or until doubled in size. Form dough into 4 loaves and place in oiled loaf pans. Set to rise 1-2 hours until dough is about 1 inch above the pan sides. Place in preheated 450º oven for 20-25 minutes until golden brown.