Preheat oven to 325F. Cover a sheet tray with enough foil to wrap the ribs.
Whisk together gochujang through pepper.
Place ribs on foil over the sheet tray. Coat generously on both sides with about half of the sauce. Reserve the remaining sauce in the fridge.
Seal ribs tightly in foil. Bake in the center of the oven, meaty side up for about 2 hours or until tender.
Preheat grill to medium to medium-high heat. Season ribs lightly with salt on both sides, and place on grill. Baste with remaining sauce, and grill, turning occasionally, until charred in spots, about 2-3 minutes per side.
Slice into individual ribs. Enjoy.