Remove the bones from the wings. First, fold the joint toward you.　
Then, use a small paring knife to cut between the bone and the meat.

Cut the meat around the bone and press down to expose the bone.
Once you get to the bottom of the bone, the joint is already released, so you can easily remove it.

Place pearl mozzarella (small mozzarella cheese) inside the boneless chicken wing and close with a toothpick.

Sprinkle with salt and bake for 15-20 minutes on the grill or in an oven at 220℃.
Once baked, sprinkle with balsamic cream and serve.
It would be nice to garnish with lemon or basil leaves.