Here is a recipe for a toned down Black Butte XXI that I have been tweaking. Let me know what you think.

6.6 lbs Light LME
2.5 lbs Light DME
1.5 lbs Wheat DME
8 oz 80L Crystal
11 oz German Carapils
10 oz 350L choc malt
10 oz 450L choc malt
6 oz Black Patent
4 oz Toasted Barley

Hops
1.5 oz Galena(bittering)
1 oz Cascade(flavor)
1 oz Tetnanger(aroma)

I will add 4 oz of ethiopian/sumatra coffe mixture to secondary along with 4 oz of cocoa nibs the last 15 min of the boil and 4 oz into the secondary