Had great results with a choc vanilla porter. Made a tincture with vanilla beans, cacao and vodka. Cacao nibs in the fermenter for stuck in the tap so probably would have been better in a bag. Added cold brew to some small bottles (10ml) - they tasted amazing.
I used cacao nibs in the fermenter after soaking them in vodka for 24 hours and chucked the whole lot in. Great result! Might need to rack off into a bottling bucket though or keep them in a hop bag as it caused hell for me when I bottled.
Great to see the venue is from AHB members!!! I'm heading there for the first time this afternoon. Can't wait...as hung over as I am. Nothing a RIS can't fix.