Made this tonight. I thought it superb. Had a fresh vibrant taste to it. It might not be a BIR, but it's similar in a way. I will be making this more often than a BIR now because it's just so much less hastle and taste wonderful.
Instead of making the a ruck of the spice powder using desert spoons, I just made enough for the one curry by using teaspoons, the spices came to about 2 desert spoons anyway so that is as per your recipe.
Not much else to add. I used some chicken (which was supper tender cooked this method) chillies, peppers, mushrooms, 4 salad potatoes and a can of chickpeas...
It was fantastic, that's all I can say. I think it's open to pimping as well to turn it into any style you want.
Oh, and there is plenty of oil for the reclaiming ready for the next curry.
Thank you, IfindForU