"Yeah, I make my own Red Bull" -- either a pretty cool dude, or a giant tool. It's actually really difficult to tell.
Eamon Rocky and Shiraz Noor own a restaurant in Brookyln called Aska. Given that this is a restaurant in Brooklyn, the two decided to venture out and make their own version of Red Bull. And they've been kind enough to explain how:
[H/T: Bob's Blitz]