hello, I'm new to here and I see lots of recipes for restaurant style curries.

I have been cooking curries for many years, and used to subscribe to Pat Chapmans curry club, searching for the elusive 1980's style restaurant vindaloo.

I'll look through all the recipes in time, but I have never been able to find this recipe. Most curries now seem to be basic curries with added chilli, but the flavour from 20+ years ago was a thin hot and sour sauce, not so "tomato" based as it seems to be now.