3 scallions, halved lengthwise and thinly sliced on the diagonal
2 tbsp. gochujang (Korean chile paste)
2 tbsp. neutral oil, such as safflower or canola
1 tbsp. low-sodium soy sauce
1 tsp. ground black pepper, plus more for seasoning
2-pounds pork shoulder, thinly sliced crosswise and pounded ⅙-inch-thick
1 large white onion, peeled and sliced into ¼-inch-thick rings
Steamed rice, for serving
Instructions
In a large bowl, combine the gochugaru, vinegar, sesame oil, 1 teaspoon of the garlic, 1 teaspoon of the ginger, 1 teaspoon salt, the fish sauce and 1/2 teaspoon of the sugar; mix well.
Add bok choy and scallions, and toss with your hands, working the sauce in between and all over the leaves.
Heat a grill to medium-high or heat a stovetop griddle pan to medium-high.
In a large bowl, combine the gochujang, neutral oil, soy sauce, 1 teaspoon black pepper and the remaining 2 teaspoons garlic, 1 teaspoon ginger and 1 tablespoon sugar; mix well.
Very lightly season the pork with salt and pepper.
Add pork and onion to the marinade and toss, gently massaging the marinade all over the meat; the meat does not need to rest in the marinade before it is grilled, but it can be marinated for up to 3 hours.
Grill the pork and onion, in batches if necessary, until nicely charred and caramelized around the edges, and the pork is cooked through; about 3 minutes per side.
Transfer to a serving platter.
Serve the grilled pork and onions with the fresh sesame kimchi and rice on the side.
Notes
No need to be precise about how you slice the meat; the pieces themselves do not need to be the same size, just the same thickness; slice crosswise as best as possible, then rely on pounding to even everything out.