I'm new here, and found the welcoming message I got when I joined very helpful. I still struggled to understand certain bits and pieces so I thought I'd post a synopsis of the general info I found which might help other newcomers. Please let me know if I've got anything wrong.
BIR (British Indian Restaurant) Curry BIR curry differs from traditional Indian cuisine in some marked ways. A lot of the dishes are far removed from their traditional origins. For many people the BIR curry is exactly what they want to duplicate.
The standard BIR cooking method is pretty formulaic and somewhat different to other curry cooking methods. Reasons for this are largely to appeal to a British audience and to speed up the cooking process. In particular, the BIR method allows a restaurant to bring forward and standardise almost all of the work for any curry so that any curry can be made from one base sauce, one spice mix, and precooked meat with minimal final specific cooking to produce each different curry type.
1) Prepare a base sauce (also known as a gravy)This is quite fundamental. BIRs predominantly have their own recipe for a base sauce which they then base all their curries on. There is often an element of secrecy about a restaurant's base sauce and spice mix (below). As a result, perfection of base sauce recipes form a large part recreating BIR curry at home. Once made this base can be frozen so it's worth making in batches.
Classic Example:
Curry King's Classic Base Sauce2) Make a spice mix.This is a standard blend of spices to add to your curry. Garam Massala (from Urdu, garam, "hot" and masala "paste") is an example of a spice blend, and can be used instead of making your own, although general consensus is that a homemade blend is preferable. This can be stored like any other spice mix.
Classic Example:
Bruce Edwards Spice Mix, posted by Curry King3) Precook your meatWith the exception of meat cooked Tandoori style, generally this means boiling it in spices. This can done days in advance then be refrigerated. This helps BIRs produce their curries in minutes "on the night".
Classic Example:
Uncle Buck's BASE CHICKEN4) Finish the curryThe final preparation which has to be carried out just prior to serving, and which turns the generic parts above into any final curry, be that vindaloo, madras, bhuna etc.
Classic Example:
Bruce Edward's Madras Recipe (from Lorrydo)
Does that seem about right?