AV, the fact that you are not a young couple and have children puts this in new light for me. Nevertheless, you have to handle this with wisdom. I wholly concur with emjs post. The Mama is looking for someone to so lenu ( give name), don't let it be you. Put your deep freezer to good use. It's too late to confront your husband on it without causing major rifts in your relationship. Wean him off as emj has suggested. And use flattery to your advantage and be praise mamas food and ask for her special, "whatever dish". If its nothing diabolical, she will melt eventually. Since her son is her favourite, ask her to describe why that is the case. How was her pregnancy with him? were there any special circumstances surrounding his birth etc. that should make any normal person thaw. May God give you wisdom.