In a large mixing bowl soften 2 packages active dry yeast in 1/2 cup of warm water, leave it for a few minutes.Stir in 2 cups of flour, 2 cups of warm water, beat well, add 1 tablespoon of salt, then stir in 4 1/2 cups of the remaining flour, 1/2 cup at a time, then add 3/4 cup of flour if needed (the dough should be stiffer than ordinary bread. Place the dough in a lightly greased bowl turning once to grease surface, and let it rise in warm place for 1 1/2 hours. Punch down, let it rise for another hour.
divide in half and form each part into a ball
place on a baking sheet sprinkled with corn meal (gives crunchy bottom crust)
add 1 tablespoon of water to one egg white, lightly beaten, brush over the top and sides of loaves
with sharp knife score loaves with 4 shallow cuts, then make 4 crosswise cuts
(I did a mistake here the cuts were a little deep, they must be shallow)
let it rise for another 1 1/2 hours, brush again with egg-white mixture.
Place a large shallow pan in the lower rack of the oven filled with boiling water while baking
(this makes crust crisper)
bake it in preheated oven at 400 F for 15 minutes
(it is really very delicious crispy very good