Take the pork chops out of the fridge 15 minutes before cooking. Pat them very dry with paper towels. This is key for a good sear.
Make the glaze: In a small bowl, whisk together the gochujang, soy sauce, sesame oil, brown sugar, grated garlic and ginger, and rice vinegar. Set aside.
Score and season the pork: Use a sharp knife to make shallow cuts through the fat cap on the edge of each chop to prevent curling. Season both sides generously with salt and pepper.
Heat your pan: Set a large cast-iron or heavy-bottomed skillet over medium-high heat for a solid 3 minutes. Add a thin layer of neutral oil. It should shimmer and ripple.
Sear the chops: Lay the pork chops in the pan in a single layer. Do not crowd. Leave them alone for 4 minutes to develop a deep, dark golden-brown crust. Lift one edge with tongs to check the color — it should look like well-toasted bread.
Flip and glaze: Flip the pork chops. Immediately brush a generous layer of the gochujang glaze onto the cooked side. Let it cook for 2 minutes.
Baste and finish: Flip again, brush the other side with more glaze. Spoon the pan juices over the top. Cook for another 2–3 minutes, until the internal temperature hits 135°F. The glaze will be dark and sticky. If it starts to burn, add a tablespoon of water to the pan to cool it down.
Rest: Transfer the pork chops to a cutting board. Let them rest for a full 5 minutes. The temperature will carry over to 145°F. This step is non-negotiable for juicy meat.
Serve: Pour any remaining glaze over the top. Sprinkle with sesame seeds and scallions. Serve with rice and a crisp side dish.