Brewed this one day and didn't want to run to the LHBS so I just subbed some American crystals for the Belgians I had on hand.
1lb FLaked Corn
.25lb British Chocolate Malt
.25 Special B
1.75oz Willamette @ 4.8% 60mins
The CaraVienna is 22L and the Special B is 175L.
Just kegged it tonight, but warm and flat, it was quit interesting. Sour but not offputting by any means. It'll be interesting to taste it later this week cold and carbed.