I've seen recipes for biryani and a few kormas with ridiculous ingredient lists. Rose water, petals, pandan leaf or juice, and gold or silver foil. The truth mick, is that most delicious curries are made using a few of less than a dozen common spices. Then there are a few other things occasionally added for particular flavour.
As for "Balti", I'm yet to be convinced that it is actually a defined dish. Frequently discussed, " What makes a balti a balti?" There are several different notions but no correct answer. It appears to me that a balti is, or could be any one or more of the following.
A dish using the balti spices. What are they?
A dish prepared and served in a particular bowl. Any curry could be a balti.
A meat dish cooked with vegetables. Add capsicum and a piece of tomato to chicken curry = balti.
A dish served with and consumed using a naan, sometimes huge and shared.
A dish only available in Birmingham UK. The champagne / bourbon argument.
Just a word attached to dishes for marketing or perhaps differentiation.
If I cook a dish using my home made balti paste I usually enjoy it, whether it is a balti or not.
I just did an instant pot version (adaption) of the kushi balti. Very nice.