In a small bowl, make the seasoning mix by combining 1 teaspoon salt, five spice powder and white pepper. Set aside.
On the meat side of the pork belly, rub ShaoHsing wine into the meat, until it’s completely absorbed. Even sprinkle the seasoning mix over the meat and rub in.
Turn the meat over, skin side up.
With a meat tenderizer or metal skewer, poke holes all over the skin. Using a sharp knife, score the skin to make it easier to cut after it has been cooked. Rub 2 pinches kosher salt over the skin. Dab away any moisture.
Let marinate uncovered in the fridge for at least 24 hours.
Once it’s done marinating, dab away any moisture on top of the skin and brush off any remaining salt.
Wrap the bottom in foil. Do not cover the skin.
Preheat your air fryer to 350°F. Place the meat in the basket and cook for 25 minutes. Remove the foil and turn air fryer up to 400°F and cook for another 5-8 minutes until golden brown.
Let rest for 20 minutes.
With a sharp heavy knife, like a chef's knife or cleaver. cut the meat where it was scored. With the skin side facing you, slice into ¾ inch to 1 inch pieces.