Baechu Geotjeori (Fresh Kimchi)

Name: Baechu Geotjeori (Fresh Kimchi)
Cuisine: Asian, Korean
Ingredients: 1 small (about 2.5 pounds baechu, (napa cabbage)); 3 tablespoons coarse sea salt (less if using finer salt); 2 scallions; 2 ounces buchu (garlic chives, cut into 2-inch pieces - optional); a few stalks minari (water dropwort, cut into 2-inch pieces - optional); 4 tablespoons gochugaru (Korean red chili pepper flakes); 3 tablespoons myulchi aekjeot (멸치액젓 (fish sauce)); 1 tablespoon corn syrup (or Korean rice syrup); 1 tablespoon maesil cheong (매실청 (Korean plum syrup) - or a bit more corn syrup); 1 tablespoon minced garlic; 1 teaspoon finely grated ginger; 1 teaspoon sesame seeds