Take the pork chops out of the fridge to room temperature for 20 minutes before cooking.
In a large skillet over medium-high heat with heated oil, pan fry the pork chops (2 minutes on each side, or until it’s golden brown and reaches an internal temperature of 150°F). Keep pressing the pork chops down to prevent it from curling up when cooking.
Sprinkle on pepper salt powder on each pork chop.
Spread Kewpie mayo on each half of the pineapple bun.
Assemble the bun in this order: bottom bun, kale, 1 pork chop, American cheese, caramelized onions, 1 pork chop, and cover with the top half of the bun. Repeat for the rest. Serve and enjoy!