Prepare the beef by removing excess blood with a paper towel.

Rub the cucumber with coarse salt, rinse thoroughly, and slice thinly into round shapes.

Mix all marinade ingredients and marinate the beef.

Sprinkle 1/3 tbsp salt on the sliced cucumber and let it sit for 40 minutes.

Rinse the salted cucumber 2–3 times and squeeze out excess water.

Heat a pan with a small amount of oil, then stir-fry the marinated beef, minced garlic, and chopped green onion over high heat.

Once the beef is fully cooked and the liquid has evaporated, add the prepared cucumber and stir-fry briefly.

Add 3–4 drops of sesame oil and mix well. Adjust sweetness or saltiness if needed.