an unrelated post lead me to this which i'd not previously found (
https://curry-recipes.co.uk/curry/index.php?topic=3382.0).
where i'm coming from is the "what,how and end point" - i guess the principles involved not the detail. for example 30 secs cooking time is not the kind of thing that i feel will help us all improve (we need to pin down the variables). i know that BIR chefs must cook by sight and it's what's going on in their brain whilst this is happening that i'm trying to tease out through collective thinking.
it's probably also worth pointing out (although i think obvious) "technique" is only one part of the overall jigsaw.
i feel there is a lot in this "technique" and a need therefore to break it down into chunks. so stage 1 - hot frying in oil
the what - any or all of: chopped garlic, garlic/ginger paste, chopped onion, chopped pepper, un cooked meat
the how - pan on heat, add oil, add ingredients, fry at high temp. it appears the ingredients are normally added in the sequence of garlic or g/g paste, onion/pepper, meat. the ingredients are kept on the move by stirring constantly
end point - just to cook out the rawness (smell released). the ingredient is starting to slightly brown at the edges. it is better to under cook than over cook as it is easy to burn in the high temp oil. more cooking does not improve taste
summary
i think this stage is pretty well known and accomplished by us all and probably not an area for improvement. i don't think it matters if the oil is hot when the ingredients are added as long as it reaches high temp during the cooking ie ingredients are fried. it's questionable why all the ingredients are not added in one go.
rev 1 - further thought: is the garlic or g/g paste added early to infuse taste into the oil. if so is high heat/quick frying the right thing or would a slower frying deliver greater taste into the oil. this would explain the order that the ingredients are added.
please post any thoughts, discrepancies or alternative approaches.
will then move on to stage 2 emulsification (spice frying).