It's just five simple steps:
- Take your most lofted wedge
- Set up with the ball in the middle of your stance
- Open the clubface... VERY open
- Take the club up sharply (notice how much wrist cock he creates for a short shot)
- No followthrough
This looks like a good shot to experiment with. That "no followthrough" finish from the rough might be useful with some other shots from the rough as well.