or until smooth and elastic, adding flour as needed. place dough in a greased 2-quart oven-safe casserole dish or bowl that will fit in your pressure cooker. let rise until doubled in volume in a warm draft-free place 40 minutes to 1 hour. when doubled, punch down, turn out onto counter, and knead a few times. place dough back in dish and let rise a second time for 1/2 hour.
pour 2 cups fresh or salt water into pressure cooker with rack. place container of dough in the pressure cooker and seal with lid. bring up to 15 pounds pressure. turn heat down to maintain pressure, and cook 40 minutes. cool 