In a large mixing bowl, dissolve the yeast in the warm water and let it sit for about 5-10 minutes, until it gets foamy.
Add the salt and gradually mix in the flour, one cup at a time. Stir until a shaggy dough forms.
Turn the dough out onto a floured surface and knead it for 6–8 minutes until it becomes smooth and elastic.
Place the dough in a greased bowl, cover it with a damp towel, and let it rise for about 1 to 1.5 hours or until doubled in size.
Punch down the dough and divide it into two equal portions. Shape each into a loaf.
Place the loaves on a baking sheet dusted with cornmeal. Cover loosely and let rise again for 30–45 minutes.
Preheat your oven to 425°F. Use a sharp knife to make shallow slashes on top of each loaf.
Bake for 25–30 minutes, or until golden brown and the loaves sound hollow when tapped.
Let cool slightly before slicing—if you can wait that long!