First heard of the fruit from https://www.youtube.com/watch?v=uAhhexB-p9A Not sure if they are easy to get here, but I will take a look. (my initial comment still stands though)
Do you have a specific one to recommend? I once tried https://www.lindt.de/excellence-chili-100g but it didn't convince me at all (spiciness was very low)
Sounds interesting! I will look if I can find it