Bistek is one of the best seller at carenderias, canteen and any other eatery. I my self really love this dish, because it is salty and tangy it make you crave for a second serving.
1 k. beef sirloin, cut into thin slices
2 medium size onion, sliced into rings
1/2 head garlic, finely chopped
1/2 c. soy sauce
1/4 c. kalamasi juice
1/2 tsp. sugar
Marinate beef in a mixture of soy sauce, kalamansi juice, sugar garlic and pepper for 1 hour or overnight in the refrigerator. Separate the beef from the marinade reserving the marinade on a separate bowl and set aside. In a wok heat a tablespoon of oil and stir fry onions until translucent remove from wok and set aside. In same wok heat 3 tbsp. of oil and stir fry beef a few pieces at a time until color changes to dark brown and start to sizzle. When all the beef are done, return it to the wok, pour in remaining marinade and 1 cup of water bring to a boil. Simmer for 2 to 3 minutes or until sauce is reduced to half. Add in onions and simmer for a minute. Serve with a lot of rice.