Two tablespoons in chili adds a good flavor. Also we used to add a packet of pb to our spaghetti more. It's really good.
Ground cashews work very well too, make sure they are not seasoned. I just whiz it in a chopper.
You can put it in any curry initially when you are sautéing the curry paste to release the flavours.
It is common in Indian cuisine to thicken the curries with cashew or dry roasted peanuts. They don’t use flour or cornstarch to thicken stews and curries.You know, my wife has done something like that with cashews, and I've done something like that with almonds.