I am making Heidi Swanson's green pozole recipe today. I did not do an overnight soak for the hominy, but did bring it to a boil and allow to soak for an hour, then changed the water and started to cook it. It has been cooking for almost 4 hours now, but has not "cracked" and it is still very chewy. I do not own a pressure cooker. Anyone know how long I can expect it cook? Should I run out and buy a can of hominy??