Wash the new potatoes thoroughly and place them in a microwave-safe container. Cover with damp kitchen paper and loosely wrap with plastic wrap. Microwave at 600W for 6–7 minutes until cooked.

Let the potatoes cool slightly, then break each potato into 3–4 rough pieces by hand.

Heat salad oil in a frying pan over medium heat. Add ground beef and grated garlic, stirring until the meat changes color. Add the potatoes and stir-fry for 3–4 minutes until crispy.

Add sake, Worcestershire sauce, and salt and pepper. Stir-fry until the liquid evaporates.