Place the bread hook on the mixer and turn on low. Add the eggs, salt, and remaining flour up to 4 cups. Allow the mixer to "knead" the dough until it pulls away from the sides. Run the mixer for approximately 10 minutes to allow the dough to stretch and develop the gluten. If the dough seems too sticky after the first 2-3 minutes add an additional 1/4 cup flour. After 10 minutes, turn the mixer off. Cover the top with plastic, and allow the dough to rise until double in size, approximately 60-90 minutes in a warm kitchen.