Start with a wide squat stance holding dumbbells at your sides. Squat down to the bottom of a squat and as you rise up, raise the dumbbells up to shoulder height.
Once at the top of the squat with the dumbbells out in front of you, drop down to the bottom of the squat while using your core to control the descent of the dumbbells back to your sides. Use a controlled swing motion as you return back up to the top of the squat. Repeat for all reps.