I've re-opened my personal R&D on two dishes recently, in the search for tastes which get close to the best of the BIRs. The dishes are Chicken Korma and Chicken Dhansak.
I very rarely have Chicken Korma in BIRs these days (a) because I've got a bit tired of it and (b) because the average BIR standard seems to have dropped off, compared to the 1980s. But I can remember some of the characteristics of the best kormas I've ever had and that's what I'm trying to match. About a month ago I got close but, then, the next time I tried, the taste wasn't as good. I feel that being able to repeat a dish, at will, to the same standard is essential but it's not that easy.
This evening I made my best ever Chicken Dhansak and I hope I'll be able to repeat or improve on it. The approach I used is nothing like any of the recipes on here and yet it got close to the flavours I love at the very best BIRs.
Another aspect is that I could probably have cooked both these dishes to the same standard over a small camping stove on a low flame. I don't see high flames, let alone the near-burning of anything, as being either necessary or desirable.