Finally tried this tonight at O'Brien's. What a great beer!
Apparently based on a Sumerian beer recipe, made with honey, muscat grapes, and saffron. 9% alcohol and very reminiscent of a dessert wine in flavor. It would probably be a good accompaniment to desserts, actually. A pity I can't find this in stores, as it's easily my favorite so far of the Dogfish Head beers.
Anyone else tried it? Or know where to buy?