It's labeled a sweet stout and I definitely get the lactose sweetness and mouthfeel but is not heavy or overly roasty. To me it tastes like a really dark brown ale or a black ale instead of a stout. The website claims it has copious amounts of roasted barley and milk sugar but that's about it.
Google comes up with nothing as far as a clone.
C - Lambic
Tap -Red Lager, Black Lager, Patersbier
Bottle - Barleywine, Mead, Flanders Red, Wheat Wine
On Deck - Cream Ale
STL Brews Homebrew Club