'Mixed bag' as they say.
Been trying to do this kinda stuff for over 30 years (on and off)...
Started by joining the curry club (Pat Chapman), bought his books and took it from there.
Dabbled at various recipes over the years, going back over the books and looking on-line. Overall the results were good, but still found them lacking 'the taste'..
Anyway, to cut a long story short I bought yet another book last year and it rekindled the interest, found a forum on-line I was a member of way back which listed lots of recipes and techniques and started trying yet again
Al's Kitchen on You Tube has some decent stuff. I haven't used his base sauce but the Pathia I cooked tonight is basically his recipe. The Korma was kinda based on a recipe on the forum (which is still there) but looks as though nobody is contributing to these days..
Dan Toombs (TheCurry Guy), I have dabbled with some of his stuff at some point, but yeah maybe I should go back and have a look. Thanks for the reminder.