Just wanted to add my own recommendation to this recipe. I made it with skin-on chicken thighs and drumsticks, both on the bone, and skinned it and picked it off the bone as I ate. I cooked the onions for about 40 minutes then let the meat simmer for about an hour since I wasn't in a hurry and served it with a plate of rice. I found the sauce very rich and almost creamy and the meat delicious. For the record, I used (the last of!) chewytikka's mix powder.
Further up the thread, I saw someone threw in some potatoes - I can certainly see that working very well and might try adding some myself if I ever to make it extra filling.
Thanks Chris for posting the recipe!