This Vindaloo is one of the tastiest I have ever had.
There is a taste that is going on in the background that I cannot put my finger on, as it were.
There is a sweetness that I don't get in mine, not consistently anyway.
It is there if I have a plain curry, Madras or Vindaloo.
Given how simple the curry is I believe it is in the base, the base does have a sweetness to it.
Beyond that , at this stage I can't answer further.
Mick