The thread title is clear, But what sort of BIR curry, in terms of product quality?
I had a takeaway a few days ago from a BIR recommended by a neighbour. It lacked any real finesse. I have zero interest in recreating dishes like that, so I can only hope that Chris has much better recipes.
One dish I bought was dhansak. Two other dhansaks, mentioned previously on this forum by me, were much better: (1) Morrisons chilled food dhansak, now sadly deleted. The Indian dishes that Morrisons now sell are not in the same league (2) a dhansak I made from a packet of spices sold by Geetas, now also deleted.