Prepare Eggplant: Cut the washed eggplants into halves lengthways and score them.
Fry Ingredients: Fry the green onion in heated oil, then quickly fry the eggplant for 10-15 seconds.
Prepare Soy Sauce Brine: Mix soy sauce, vegetable stock, unrefined sugar, and vinegar in a bowl.
Pickle Eggplant: Place the eggplant and green onion in an airtight container, pour the soy sauce brine over them, and let sit in the fridge for 1-2 days.
Serve: Serve with chopped green onions and sesame seeds sprinkled atop.