Start preparation at least 30 minutes before cooking (or ideally the night before) by marinating your choice of meat. For spicy pork marinade (maanghang na marinade), combine 4 tablespoons gochujang paste, 2 tablespoons mirin, 3 tablespoons soy sauce (toyo), pureed apple or pear (mansanas o peras), 2 tablespoons sugar (asukal), black pepper (paminta), minced garlic (bawang), and salt (asin) to taste. For classic pork belly marinade, mix soy sauce, sugar, water (tubig), sesame oil, black pepper, minced garlic, ginger (luya), and finely sliced green onions (dahon ng sibuyas). Coat the meat evenly and refrigerate.
While the meat marinates, prepare your banchan and sauces. For the red chili sauce, combine ½ cup gochujang with ¼ cup honey, ¼ cup sesame oil, ginger, and garlic. For ssamjang sauce, mix ¼ cup ssamjang paste with chopped green onion, garlic, gochujang paste, sugar, sesame seeds, and sesame oil. Set these aside in small serving bowls (mangkok).
Prepare your fresh vegetables (sariwang gulay): wash and dry lettuce leaves, julienne the carrots, thinly slice white onions (sibuyas), slice cucumbers (pipino), and arrange mushrooms (kabute) and bean sprouts (togue) on serving plates (pinggan).
Heat your Korean grill or non-stick pan to medium-high heat (180-200°C/350-400°F). Pat the marinated meat dry with paper towels before grilling to achieve better browning. Place meat slices on the hot grill, being careful not to overcrowd. Cook for 2-3 minutes per side until properly browned and cooked through. Use scissors to cut the meat into bite-sized pieces while on the grill.
As you grill, maintain the temperature between 180-200°C (350-400°F) for optimal cooking. Clean the grill surface between batches using tongs (sipit) to prevent burning and sticking. Serve the meat immediately while hot, alongside your prepared banchan, fresh vegetables, and dipping sauces.
For eating, place a piece of lettuce in your palm, add grilled meat, your choice of vegetables and banchan, top with preferred sauce, then wrap and eat in one bite, ssam-style. Continue grilling meat as needed throughout the meal to ensure everyone enjoys hot, freshly cooked portions.