Just standard vegetable oil is fine. Even better is something like grape seed oil, which has a high smoke point and can be heated to higher temps without degrading. I’d pass on olive oil or just butter alone for the opposite reason: it starts smoking (and burning) at a lower temp. Thanks for watching and happy cooking!

Yes. But the thing to watch out for if you only use butter is burning. Butter burns easier than oil (known as a smoke point). And this is particularly an issue with blackening, as it uses high heat. So I recommend using a high-heat oil like peanut or grapeseed with or in lieu of butter.

Yep. That’s going to be a job for the pressure washer, lol.