i've written out a yellow sticky recipe now for this dish but have ended up a tad disappointed.
i've compared it to Admins Jalfrezi which i make a lot. the recipes are essentially the same albeit a few minor differences.
Admins has black pepper which i feel works well. it too does not have tom puree (which i know to be essential for this dish ie NO puree). the youtube has methi which although i'm now liking it's not across the range and i can't see it improving from Admin's dish.
on technique i would not flame the g/g and i tend to add all the powders in one go (they add each and stir before adding the next). i also add a little of the base with the spices to make sure they don't burn. i too add the base 1 chef at a time progressively (ie not all at once) and am confident this is the best approach to maximise the taste.
the only real difference is the suggestion to use curry powder in place of mix powder. this is suggested in that undercover book. i know members who i completely trust believe only mix powder is used and curry powder is a red hearing (myth).
i'll have to do a side by side to prove it one way or the other. i already tend to believe that it is mix powder as this is an area that my local TA chef will not discuss - if curry power on it's own was used then i think he would say so.
i will also just for peace of mind copy cat the utube approach of getting the oil
v.hot before adding the g/g paste. i'm sure i've tried this in the past but it's worth repeating. i use their recipe to spec and compare with Admins as a head to head