I made this recipe again this evening, with the same slight change I made about 5 years ago - I use 3 tbls yoghurt instead of 3 tbls water. That's the only change.
I was reminded how truly great the recipe is. I've had chicken tikka starters in a fair few different BIRs over the past few years and NONE of them were better than what I made tonight, thanks to Blade. One or two may have been as good, but none were better, and most were not in the same league.
I used the simple gas grill on my gas cooker. The tikka was in quite large chunks of chicken breast, left to marinade for just 2 hours. The raw, marinaded chicken was positioned on the lowest level, with the grill on the lowest flame setting. The tikkas had 5 minutes on one side, then I turned them over for 5 minutes on the other side. Next I covered them with a piece of foil and they had a final 5 minutes under the grill. The result was so good, that it strikes me as totally pointless and futile to spend any more time playing around with tandoor ovens. Maybe the BIRs use tandoors to cook tikkas or maybe they don't (most of the time) but whatever they do, the results are no better than I achieved with Blade's recipe and the use of a simple grill.
Even the chicken was the cheapest possible - from Lidl - with 30% off because of the nearby due date.