I don't believe its all in the base sauce.
I did an a test the other day, one curry cooked with hardly any oil as a starter the second
was cooked with loads of oil as a starter and the second one tasted very different, infact the second one tasted nearly like the real thing.
Too many base sauce recipes and too many are similar give or take the carrot.
Hell, it can't be one simple ingredient, I think alto of people would be happy if that was the answer.
For one ingredient to make that much difference to the taste of a sauce is nigh on impossible, we are not talking about a subtle taste that would be missed by most people, but something that we all agree on with out question is definate.
Everyone on this forum KNOWS that what they cook at home still has something not the same.
Whats different,
A) you cooked it and it's not in a sliver foil container or served on a sizzling platter
B) you've not done it day in and day out for 10 years (well most of us have not)
C) you really don't realise that what you've cooked IS the real deal.
Someone tell me that they have cooked a curry using these recipes for someone else, and told them it was a take-away and they
said "no way man this tastes like you cooked it".
I cooked Pete's one for the wife and she said and I quote "you could sell this and no one would know".
Still, is it worth going to the Bengal Cuisine again, my Dads birthday is comming up soon and he's keen on going, maybe I'll push for using the sauce that he cooks and not the "special" already done sauce.