I don't know if anyone else will have tried this, it's by Hotel Chocolat.
www.hotelchocolat.com/uk/shop/collections/chocolate/supermilk/cienaga-80-supermilk
I didn't quite know what to make of it. I ate the whole lot (50g, which isn't that big,) but I think I prefer the 65% supermilk that they do. Anyone else tried it and what did you think?