1/2 kilo beef (tenderloin)
1 tbsp salt
1/4 tbsp pepper
1 tbsp calamansi juice
1 tbsp vetsin
1 beaten egg

Cut beef into thin slices. Season with salt, calamansi juice, pepper, and vetsin. Let stand for 1/2 hour. Dip in beaten egg, roll on bread crumbs. Deep fry until golden brown. Serve with catsup.