What's the secret to a great home-made curry?

[clutterfly]

Hi everyone, I'm making a chicken curry tonight. It usually goes well, but I wondered if anyone had any great tips for a spectacular curry?

Definitely the onions for me. I blitz them in the food processor and then fry them for ages in some oil. Seems to make such a big difference to curries.

Mmmmm, I'm craving home made curry now!