I have been looking for a Balti recipe for some time.
This recipe is not like most I have seen on here and so I read all the comments/reviews and considerations and modified the recipe.
I made the base yesterday, so that I could have it ready as one of the dishes for after the football, here is what is left over:

I did not include any cinnamon as I had intended to use Chicken but when I tasted the base, I chose to use beef instead (last minute decision, no mutton/lamb to hand, ok, maybe last 6hr decision) but the base can be used for Chicken.
I would say that I nearly burnt out my blender on a couple of attempts trying to blend this gravy.
ADVICE
Blend in smaller quantities and add a little extra water (Eventually, I blended 400ml of gravy with 100ml of water, 3 times.).. the extra water is necessary for beef, maybe for lamb but can also be boiled off before adding the chicken.
The fragrance (and taste test) of this base was extremely familiar during the cooking and I will definitely make it again BUT it is a Balti Gravy, not a Base Gravy per se.
BAJ