Remove the innermost small leaves and set them aside. Slice the remaining cabbage diagonally into bite-sized pieces.
Sprinkle 1 tbsp salt and 0.5 tbsp sugar evenly over the cabbage and let it sit for 30 minutes to draw out moisture.
Rinse the salted cabbage thoroughly in water and squeeze out as much water as possible — any leftover moisture will make the seasoning taste weak.
In a mixing bowl, combine all kimchi seasoning ingredients: gochugaru, sugar, fish sauce, plum syrup, minced garlic, and MSG. Mix well.- If you don’t have plum syrup, skip it or add 0.2 tbsp more sugar.
Add the drained cabbage to the seasoning and mix until evenly coated.
Cut 1/4 bunch of green onions into large pieces and gently mix them in. Avoid mixing too hard, as it can make the green onions smell grassy.- If you don’t have green onions, you can use thinly sliced leeks instead.
Finish with a sprinkle of toasted sesame seeds on top (optional).