Oh C0ldf1re you are so brave ... my hero <sniffs & wipes away tear delicately with embroidered hankie>
Thank you, darling. I knew that you would always see the best in me.(Good grief! There is no chickening out now. Fran believes in me. I can't let Fran down. I really do have to eat that curry. Cowardice is no longer an option.)
I think I know where I went wrong. Tuna does not have a strong taste. Nor does stewed mango. Nor do boiled cashews. And I only used mild curry powder sparingly, because I did not want to overpower the other tastes. In fact I finished up with a very bland stew, that had no real taste at all.
So I have added some hot pepper sauce. And some more salt. And some garam masala spices. It has become too thick after all that simmering. So I have added blueberry juice as a liquid. Perhaps that will restore it as a fruity curry. Coconut milk might have been better, but I don't have any.
Leave it to simmer a while longer, and I'll test it again.
I have sternly disciplined myself not to eat anything else, until I have eaten that curry. I'm sure that it will be welcome food for a starving man.