Continue to mix in remaining flour until dough starts pulling away from bowl side. The dough will be somewhat slack. I look for most of the dough to be on the hook.
Perform a window pane check on the dough to determine how long to let the mixer knead. Generally 6 works - sometimes 8 minutes is required. Always knead on low speed.
Dump dough out on an oiled surface and do a few stretch and folds and gentle kneading to form dough.
Place dough into a large oiled bowl. Cover with damp cloth and allow to rise for at least an hour.
Once risen, divide into 6 equal portions and form loaves. Put loaves into oiled or sprayed bread pans. I use 6 1.5 qt glass bread pans.Let rise till double - generally 30 - 45 mins. I put mine into the ovens with oven light on. The light provides enough heat to promote rise.
Preheat oven to 375°. Bake for 45. Remove pans from oven. Remove loafs from pans. Allow loaves to cool on a rack.
These loaves freeze well.