I'd love to make yoghurt, only problem is the pilot light on my oven is broken. Is there an alternative option?

Good question! We did this the other night (for the first time) and though our oven light works, the fan comes on with it....so we turned it off and left it in the dark. Our method said to wrap the jar in a teatowel anyway. Left it for about 12hrs and hey presto, we have yoghurt!