I first had Boulevard's Imperial Pilsner at the beer's release party in Lawrence, Kansas. In case you hadn't heard, this Imperial Pilsner is a collaboration between Boulevard Brewing Company and Orval's master brewer Jean-Marie Rock. Steven Pauwels, Boulevard's brew master, and Rock met at a conference in Tucson last year. It was there that these two Belgians hit it off and agreed to collaborate and resurrect a beer Rock had brewed some 30 years before. The style that beer most closely resembled is what we now call an American Double or Imperial Pilsner.