Chickpea Curry with Cauliflower

Well, my son is having issues with heartburn, so I've had to modify his curry a bit. The curry doesn't actually bother him, but the tomatoes do. It doesn't help matters much that the curry paste I usually use (Patak's) has started using corn flour in it, which he's allergic to. So, on curry night, I just make two curries now. One nice thing about making two is that there are a lot of leftovers for the manfolk (I can smell some being reheated by the kiddo now - YUM!) so I don't have to cook lunch or worry about my better half stumbling in the door after work as if he's starving to death. First, I pressure cooked the chickpeas. I have not had good luck with the method where you pressure cook them for a few minutes and then let them soak for an hour before cooking. They consistently come out with soft outsides and a little rock in the middle. This time, I let them soak for 24 hours and then cooked at high pressure for 16 minutes, letting the pressure re