Hi chriswg
Thank you for the complement, very nice thing to say

.
With regard to the recipe here are the details:
CA's base -
https://curry-recipes.co.uk/curry/index.php?topic=3772.0Always make a double batch with 2 x quantities as per spec. Usually use fresh ground spices in base.
CA's Vindaloo -
https://curry-recipes.co.uk/curry/index.php?topic=3953.0Always make a double portion with 2 x quantities as per spec.
However recently I have been experimenting and have now started using Bruce Edwards mix (
https://curry-recipes.co.uk/curry/index.php?topic=1546.0) made exactly to spec with pre-ground spices. I personally find, as others have said on this site, that fresh ground spices start to steer the overall flavor away from my personal idea of the BIR taste.
I always pre-cook the chicken with an oil based method based on the recipe in the curry secrets paperback book. Basically cook gently in oil with some chicken seasoning, cardamom, turmeric and a tbsp or so of gravy until cooked and very tender, then drain on paper towel.
The spices are very gently fried, mainly because I am always paranoid about burning them.
The potatoes in the Vindaloo are boiled until firm just with 1tsp turmeric and 5 or so green cardamom pods. Plus I always allow 3 or 4 of them to enter the curry dish with the potatoes during the latter stage of cooking.
I personally find the choice of tomato puree used to be a critical factor in the look and taste of the dish and at the moment favor the double concentrate tube variety that is co-op own brand.
The tomato puree and the addition of CA's tikka masala powder (
https://curry-recipes.co.uk/curry/index.php?topic=1514.0) are the main contributors to the deep red colour of the dish.
Oh, forgot to say, I don't use CA's spiced oil as is mentioned in his spec, not because I have any aversion to it whatsoever, just not got round to making any yet.
Thanks all.