What is the small French village Plombières-les-Bains famous for?

Plombières is a type of French ice cream made with almond extract, kirsch, and candied fruit. It was originally invented as a way to cover up a cook's failure at a secret dinner party for Napoleon. There is a theory that the plombière part of its name refers to the leaden ice cream molds that were used in the preparation of ice cream in the past.

However, Napoleon's dinner was held in the French commune called Plombières-les-Bains to negotiate a secret treaty, so the true origin of glace plombières still remains a mystery. The defining characteristic of this ice cream is the candied fruit that is ideally macerated in high-quality kirsch, which is typically dispersed throughout the dessert.