Lay the pork belly slabs on a hot cast-iron grill. Don't move them — let the contact side turn pale, then deep golden-tan.
Flip once. As the fat renders, tilt the pan so a clear golden pool gathers.
Lay the kimchi right into the rendered pork fat. Let the edges caramelize from red to deep amber-brown while the centers stay vivid red. Roll the garlic cloves in the fat until glossy and golden.
Snip the pork belly crosswise with kitchen scissors — you want a golden-tan crust ring, translucent fat, and juicy pale-cooked meat in every cube.
Build the ssam: a lettuce leaf, a cube of pork, a fold of caramelized kimchi, a dot of ssamjang. Fold it closed.
Eat it in one bite. Then do it again.
midnight tip — older, sourer kimchi caramelizes deeper and cuts the pork fat better. this is the one time you want it past its prime.