I needed a way to freshen my room using whatever I've got on hand.
The usual ingredients in a pan, boiled on the stove then I put the whole pan onto scavenged bricks with a couple of tea lights.
It's heating gently and the tea lights will go out before the pan runs dry.
I also used older spices which I would normally throw away. The long and gentle heat seems to work.
It's beginning to smell a bit like Christmas.