Other people might have a different opinion, but to my mind that sounds like a pretty dangerous mixture. At least milk and molasses stays in liquid form so it can be expelled. The recipe you mention (which is essentially the makings of a loaf of white bread) would expand, problematically, I would think.
At best, you'll have a lot of gas and a very slow expulsion. At worst, you'll be in the ER trying to explain why your innards bear a strange resemblance to a Wonder Bread bakery. To each, his own.