Use a handle attachment. The cable should be set at elbow level.
Face away from the cable machine. Stagger your stance so you have a better base of support.
Face your palm downwards, as you curl hinge forward.
As you extend your elbow, also extend your hips until you are back in a standing position.
Guida Esercizio Cable High Single Arm Reverse Rolling Curl - Allenamento Biceps | MuscleWiki