I really like my CDA recipe. This is the grain bill.
11 lbs Pale Malt
1 lbs Crystal 60L
12.0 oz Carafa II
8.0 oz Chocolate Malt
I hop with heavily cascade, amarillo, and simcoe the last 20 minutes/dry hop and I bitter with magnum.
If I was to change anything, I might add some midnight wheat in place of some of the Carafa II or possible replace the Carafa II with Blackprinz. This is mostly because the color wasn't as 'black' as I wanted it, but rather more of a deep dark brown.