Freshly baked bread mate - not toast. Get a fire going in the corner too and maybe one of them old english sheepdog lads asleep in front of it, you know, get a good homely atmos goin
Get some stainless steel hob cleaner stuff (it's pretty acidic so watch yer paws) and a SOFT (so you don't leave big wire marks everywhere) wire brush. Just keep scrubbing it and washing it off and keep repeating, ye know, lather, rinse repeat. Look at some of your mots shampoo bottles for instructions

Dunno bout getting that cleaner sh1t on paintwork tho..... if your careful you won't, just keep a hose handy to rinse it all down if it does.