If I've got the opportunity to brew with somebody that knows what they're doing, might as well make something really special! Inspired by the coffee and chocolate article in the new Beer and Brewer magazine that I'd only just discovered and the Hitachino Nest Espresso Stout I got as a takeaway from the Wheaty in my 50 minutes there last trip to Adelaide (I was very busy, arrived at 6pm and had the Wheatsheaf then two parties to go to) here's a Mocha Stout article we knocked together based on a recipe from a clone brews booklet.
5kg Maris Otter
0.6kg dark crystal
0.4kg wheat malt
0.4kg (IIRC, can't find the recipe sheet) Carafa Spec II
0.35kg black roasted barley
0.3kg flaked oats
0.3kg dextrose
1/2 vanilla pod
Racked onto cocoa nibs, with steeped coffee added in secondary.
Bittered to about 70IBUs IIRC with some older cascade and goldings I have.