Ingredients

• 1 pound beef sirloin
• 3 tablespoons soy sauce
• 2 tablespoons Korean cooking wine
• 1 tablespoon white sugar
• 1 tablespoon crushed ginger
• 2 cloves garlic, crushed
• 1 1/2 teaspoons brown sugar
• 1 teaspoon kiwi pulp
• 1/2 onion, chopped
• 4 spring onions, trimmed and chopped
• 1 teaspoon sesame oil
• 1 tablespoon vegetable oil, or as needed

Instructions

1. Wrap beef in plastic wrap and freeze until firm, about 1 hour.
2. Cut frozen beef at an angle into very thin slices.
3. Combine soy sauce, cooking wine, white sugar, ginger, garlic, and brown sugar in a large bowl. Mix in beef slices. Stir in kiwi pulp, onion, and spring onions. Cover bowl with plastic wrap; let beef marinate in the refrigerator, about 2 hours.
4. Stir sesame oil into marinade. Continue marinating beef in the refrigerator, 8 hours to overnight.
5. Heat vegetable oil in a wok or large skillet over medium-high heat. Pour in beef and marinade; cook and stir until beef is cooked through and browned, about 5 minutes.