Yep, lots of malt extract and hard-to-find german hops.
There's a recipe for it in Beer Captured. I like it a lot, too, and am using it as a basis for my Obfuscator. It's a damn fine doppelbock.
Being a doppelbock, it's a lager, so be prepared for that sort of temperature control. High gravity brewing + lagering temps = many months of fermentation & conditioning.