Hi Mike thanks for your advice, I will have a look at making your curry when I next get a break from work. I was telling Curry King the other day about my obsession to recreate my local takeaway curry and how I bought a porion of plain Madras sauce and put it through a sive to find out what solids where in it!! Crazy I know but such is my obssession lateley.
The only thing I could identify was curry leaves (dried) onion and the skin of either a capsicum and/or a green chilli. There were also a few very small seeds, the same as cumin but smaller.
Last week my wife asked the take away what they put in the Madras, as you would imagine, they remained tight lipped! All they would say is that it was a grayy that had spices in it and when pushed the guy said there were too many spices to mention as there where litrally hundreds in it, so he claimed. I doubt very much there are, and think it is probbably less then we think.
My latest thinking is that they start with or use at some point, real chicken gravey or a form of chicken stock that exudes a genuine chicken flavour. This is coupled with pureed onions as we already know and there is also a tomato element also, possibly reduced passata. This is then spiced and somewhere along the line garic and ginger are added. In my mind, these are the basic componets in a bIR curry but their proportion and timing are a bit of a mystery.