Whisk together the soy sauce, brown sugar, honey, rice vinegar, sesame oil, garlic, and ginger in a medium bowl until the sugar dissolves.

Reserve half of the sauce in a covered container in the refrigerator for later.

Pour the remaining half of the sauce over the pork chops in a shallow dish or zip-top bag and marinate for at least 30 minutes or up to 8 hours.

Remove the pork chops from the marinade and discard the used marinade.

Heat the vegetable oil in a large skillet over medium-high heat.

Sear the pork chops for 4–5 minutes per side until golden brown and cooked to an internal temperature of 145°F, then transfer them to a plate.

Add the pineapple slices to the skillet and cook for 1–2 minutes per side until lightly caramelized, then remove them from the skillet and set aside with the pork chops.

Pour the reserved sauce into the skillet and bring it to a simmer over medium heat.

Whisk together the cornstarch and water in a small bowl and stir the mixture into the simmering sauce.

Cook for 1–2 minutes, stirring frequently, until the sauce thickens and becomes glossy.

Return the pork chops and pineapple slices to the skillet and spoon the sauce over the top.

Simmer for 2–3 minutes until everything is heated through and coated in the sauce.

Garnish with sesame seeds and sliced green onions before serving, if desired.

Grill Method (Alternative)

Preheat the grill to medium-high heat and lightly oil the grates.

Reserve half of the sauce in the refrigerator and use the remaining half to marinate the pork chops for at least 30 minutes.

Remove the pork chops from the marinade and discard the used marinade.

Grill the pork chops for 4–6 minutes per side, until they reach an internal temperature of 145°F.

Grill the pineapple slices for 1–2 minutes per side until lightly charred.

While the pork chops are grilling, pour the reserved sauce into a small saucepan and bring it to a simmer.

Stir in the cornstarch slurry and cook until thickened.

Serve the pork chops topped with the grilled pineapple and spoon the thickened teriyaki sauce over the top.