OK here's the 2 recipes I talked about, I have cooked the base and this curry twice now over the last 2 weeks and will be cooking it again today. Make sure you skim off all the oil from base or the curries will be oily (not a big problem if you like them oily).
This weekend I will change the base slightly by incorporating the things Pete has added to the KD base that he said made the difference: 1 black cardamom (probably add this after pureeing the onions), 1/4 tsp ground thyme and a slice of lemon
Pre Cooked Chicken
Unlike our other pre cooked chicken recipes I think you need to cook this every time, not sure it will work out as well if you freeze it. This method produces the best results of any of the pre cook methods I have tried and is essential in reporducing the final experience I believe.
Chop up 350g chicken breast
Add 1 TBSP spiced oil on medium heat and stir fry the chicken until it is mostly white all over (not long, only takes 1-2 minutes really)
Next add 4 TBSP curry base and 2 TBSP water, bring to the boil and cook for 15 minutes, its important that the mixture is boiling slightly and not simmering.
Once done leave for 30 minutes for the chicken to absorb some of the juices, this chicken and juices will then be used in the final curry
Chicken Achar (Serves 2)
I have adapted this recipe from curryhouse.co.uk premium area, I recommend spending the money on this site, you get Dave Smiths curry cookbook which is well written and is a full guide to BIR cooking.
Add 2 TBSP spiced oil to the pan and heat on high (you can use more oil but my base is a little oily as is the lime pickle so I only use 2)
Add 0.5 TSP each of fennel and kalonji and fry them for 30 seconds
Turn down to medium and add: 1 TBSP of curry base and fry for a few seconds, add another TBSP of base followed by 2 TSP cumin, 3 TSP coriander, 1 TSP paprika, 1 TSP turmeric, 1 TSP chilli powder. Stir fry for 30 seconds
Add a ladle of curry base* and fry for a 30 seconds
Add the pre cooked chicken including all the juices, add 2 TBSP lime pickle (chopped finely or I have pureed mine), 1/4 TSP black pepper, 1TSP sugar, 1 TSP mint sauce and chopped coriander
Bring back to the boil and simmer for 10 mins
If the curry gets too thick add water (or more oil)
At the end I reclaim any excess oil back into the spiced oil pot
*Up to you how much curry base you add here depending on how saucy you like things