I have tried one of these pies. They claim to be the hottest in the world:

https://www.bremenpatisserie.com.au/the-flaming-ron

I don't see how anyone could enjoy it. I guess it's more of a novelty. I can't remember how much I ate but had to sit down and felt like I was going to have a medical incident.

It was a while ago but I think they make you sign a disclaimer or something when you buy it.