Well, it took a little longer than I planned but yesterday I got around to trying this.
That HUGE amount of cassia required wiped out my stock but I did weight it up. And to my total surprise, it didn’t overpower the finished curry at all. But next time I’m going to try with a more typical couple of sticks and see if there’s a difference.

Rather than the boil for an hour method, I went with my trusted Instant Pot pressure cook for 45 mins. I had no red pepper and just one carrot that I didn’t bother weighing. Other than that, followed the recipe exactly. I added 1 tsp regular chilli powder listed as optional.
I cooked one dish first, for me to try and the resulting curry was good. Got the approval of Mrs Robbo, so that was her dinner. It needed more heat for me though, so the 2nd dish got a fresh habanero I’d just picked from the garden. No other spices added.

I served with naan and rice (I know, I know) and it was delicious. Last night, I gave it a solid 8/10, but this morning, on the key “reheat for breakfast” it was up to a more solid 9/10. Definitely improved overnight, or maybe it’s that thing about sensory overload while you’re cooking then eating. Either way, a great start to my Sunday.
Thanks Mick. Really looking forward to turning this base into a vindaloo.
Robbo