>>753414
Chilli oil is a pretty standard continent, I make jars and jars of it.

You can't use powdered spice because the hot oil will just burn it, and if your oil isn't hot enough you don't get an infusion.
You really shouldn't use roasted chilli flakes either because even these can burn.

I get whole bags of the Chinese style chilli flakes, but Indian ones are fine too. $8 will get you a shit load of the stuff. Ideally you want chilli flakes that aren't that hot but have a nice flavour.

So no and no, and that's just because you'll burn any powdered spice.