For anyone interested, an observation I made when when boiling onions /carrot/'bit of gg'/ & frying the tomato/mix powder/gg in oil separately(baghar...whatever), was that it is like starting a basic tarka or starting a curry. The aroma from the baghar ingredients on their own, has been & is described as toffee like. I've smelled this at home,but I do'nt recognise it as bir
What I have smelled is the aroma produced when the baghar ingredients are diluted with onion gravy, in the restaurant & at home. It's completely different & not toffee like. It smells more like a spicy tomato soup if i'm near the kitchen. It is It's not the smell of the actual served food at all. A useful tip, which has helped me'
1. Have a sniff of the mix powder in it's dry form- This should be gone completely in the finished dish. There should be
no trace of this smell whatsoever in a finished dish
2. Have a sniff of the baghar ingredients on their own(oil/gg/MP/tomato) fried in a pan seperately(very toffee like smell, a bit like Ashoka Banjarra paste,which on its own,tastes nothing remotely like anything i've had in a bir). There should be
no trace of this smell whatsoever in a finished dish either
3. After adding a ladle of gravy to the hot pan, while cooking a dish, an odd like, imo a spicy tomato aroma will appear. I'll recognise it immediately along with anyone who comes into the house
* The above must not overpower the onion gravy/base gravy/garabi. I've found it's the other way round. The harsh spices are diluted by the higher quantity base gavy. I've managed it so far by frying everything on a high domestic heat,big hiss when the tomato paste & gravy hits the pan(as yet I can't explain why high fast cooking is different than longer lower temp cooking

).
There will be completely new flavours created from these mixtures & adding them to others,when done correctly,will give you the bir flavour & aroma.
IMHO, a huge amount of published material on this subject has failed to address this little issue
I hope this makes some kind of sense & helps someone
Regards
ELW