I’m not kidding.
プリン (purin) is how Japanese people pronounce pudding.
Because the “ddi” sound doesn’t exist in Japanese–they only have a “chi” and “ji” sound. Don’t ask me why. And the “ri” in Japanese is a strange mixture of r, l, and d.
It took me a looong time to remember that “purin” means pudding, because it sounds so different.