George
I cooked the base sauce as Andy described then stuck it in the freezer along with his paste and precooked chicken.
I cooked Andy's medium chicken and a Korma and Saag Paneer from the site using his method adding the base sauce cooked chicken and paste.
I am away from home just now so I don't have to hand the recipes I used however my journey with cooking curry is 30 odd years on now and I have to say that this site in all its glory has been just superb.
Like all of us I have limited time to indulge my passion for cooking curry so I have only had a go with a few and more recently like many others I have been caught up in the Andy experience. I have to say that his stuff is excellent but I really cant say how it compares to enough of the other outstanding contributions and recipes you can find here.
On another note this site is also like a drug I cant get enough of it, I can get lost for hours in here so thank you again to one and all who has made and will continue to make it compulsive browsing

Panpot