Various forms of gruel or porridge are, basically, what most people ate throughout Europe through large expanses of history, so far as I understand it. Basically, you had a cauldron of some sort on your fireplace and whatever you caught or farmed would be cut up and thrown in. Effectively, it was a breakfast, lunch, and dinner, and the cauldron was never emptied (unless the family ran out of food), nor cleaned, it was just diluted via the addition of new stuff as the years went on.
Since this is basically all of the family’s food, all food sources go in. If you want your porridge to be liquidous, then you need either water or milk. If you want meat, then you need to go kill some of your livestock. The odds that you’re going to get goat meat in its mother’s milk is actually pretty high, in this circumstance.
Well, it’s evidently only recently been done. This being a zombie thread, my suggestion predates this restaurant by several years.
I hope I didn’t help suggest it.
Okay, now this I find personally offensive, for reasons many Dopes ought to know.
As an aside, this joke seems to stem ultimately from Gorgonzola cheese, which is named for the town. But I’ve never been able to determine where the town gets its name. I suspect it has nothing to do with mythology, but you never know.
It did, however, inspire a nifty poster and T-shirt: