Soak beef short ribs in cold water for about 1 hour to remove the blood.
Rinse the ribs thoroughly and drain the excess water.
Cut onion, carrot, green onion, and garlic into bite-size pieces.
Make the marinade sauce (soy sauce, sugar, minced garlic, sesame oil, black pepper, cooking wine, pear juice).
Put the beef short ribs, prepared vegetables, and marinade sauce in a bowl and mix well.
Let it marinate for about 30 minutes.
Heat cooking oil in a pan over medium heat and stir-fry the beef short ribs and vegetables.
Stir-fry until the ribs are cooked and the sauce thickens slightly.
Sprinkle sesame seeds and drizzle sesame oil on top to finish.