Here's one I made a few months ago:
.25lb Munich Malt
.375lb Chocolate Malt
1.5lb Crystal 120L
.125lb Black Barley
6.5lb Amber LME
.5oz Perle (8.2%AA) for 60 min
.5oz Columbus (15.2%AA) 60 min
.5oz Amarillo (8.5%AA) 15 min
.5oz Perle (8.5%AA) 15 min
.5oz Amarillo (8.5%AA) 5 min
4oz unsweetened baker's cocoa 5 min
White Labs WLP051 w/1 liter starter
16 oz strong brewed coffee at bottling
This is quite bitter. The cocoa and coffee add to the bitterness To reduce the bitterness, you could sub the .5oz Columbus for another .5oz Perle for 60 min.
I left it in my primary for 4 weeks total, and then bottled.