Marinate 200g beef with soy sauce, rice wine, sesame oil, plum extract, corn syrup, pepper, and minced garlic for a while.

Peel and slice 2 potatoes into 1–1.5cm thick half-moon shapes, then soak them in water to remove starch.

Heat a pan with 3 tbsp cooking oil, slice the white part of the green onion diagonally, and sauté until fragrant.

Remove the sautéed green onion, add drained potatoes to the pan, and stir-fry on medium-low heat.

Add the marinated beef to the pan and stir-fry with the potatoes until the beef is cooked and the potatoes absorb the seasoning.

Pour 1/2 cup water into the bowl used for marinating beef, mix, and add to the pan.

Cover the pan and simmer until the potatoes are soft and fully cooked.