The One Handed Shuffle was taught to me by Daryl Martinez and Tony Andruzzi.
It is a beautiful flourish that displays significant skill without bragging—it has a clear purpose: to thoroughly shuffle your deck of cards in a visual and impressive manner.
The One Handed Shuffle will take a lot of practice and dedication—this is not something that you will learn in a night.
That said, it is well worth the investment of time. Once mastered, you will use it for the rest of your life.
Here it is, in action: