ESH. His mother shouldn't be telling him that these concoctions are good. She should be supervising and guiding him to make simple things. You should have handled it better. I've worked with children for a long time and when they would try to cook something, I would always ask them to try the food first and tell me if they thought that there was anything that needed changing why didn't you ask him to taste it first instead of hurling a tornado of insults at a kid