According to old Scottish folklore that we didn't make up at all, a secret and magical brew exists that can provide you the gift of immortality.
This magical and secret elixir is creatively known as "grogg". To obtain this elixir, one must first find the large mythical creature, who is almost as creatively named as the elixir: "The Highlander".
The Highlander will then ask you to bring him some of the most mystical and magical ingredients to brew up this fantastic elixir. With such magical ingredients as butterscotch and rum (which doesn't sound very magical, but you'll just have to take my word for it,) immortality is in your grasp!
Of course, one should never take stock in such silly fairy tales. Especially ones that we just made up. But with butterscotch and rum as flavors in our Highlander Grogg© coffee, you can't argue with the magical results of how good it is! Unfortunately, you'll just have to get your immortality elsewhere.