So I took the plunge and made a batch of chili with the new recipe, using Ghost Chilis. These were dried ones from Amazon from Chillipepperpete, who delivers to the UK. Sealed in a packed. I did try a sliver of one and it set my mouth on fire, so I am fairly sure they are hot, but ymmv.
I added half a dried ghost pepper, after re-hydrating it and slicing it thinly, to a batch of 1/3 quantities. So I guess 1 and a half chilis to a full batch.
I then slow cooked the chili for 8 hours.
It was actually delicious! I took it to a work BBQ after keeping the chili in the fridge overnight, and everyone there said it was really nice. Just enough heat and not too much.
Certainly there was some heat - it started at the tongue and rolled its way to the back of the mouth in a nice manner. However it was also full of flavor.
I'll be making this again, especially when my workmates demand more of it for the next BBQ!