A while back I posted Bistek Tagalog but this sparked an outrage with some mad trollers as I used pork instead of beef, in my defense I grew up with that type of bistek and I also knew some of my friends family who prepares it similarly so for me bistek can vary from pork to beef. Anyways apologies internet if I was wrong in your eyes. Having said that I now posted this Bistek Tagalog that uses beef and separated a pork version for that old post.
Bistek Tagalog basically are pan fried thinly sliced beef cuts served on a soy sauce calamansi gravy with cooked and/or raw onion rings. It is a Filipino dish that originated from the Mexican dish called Bistec Encebollado, both have similar flavour profiles and differ only with few ingredients. The main differences are instead of the Mexican Adobo Sauce the Filipino version uses soy sauce instead, for lemon or vinegar the Filipino version uses calamansi, also the Filipino version dropped the oregano. The flavours are quite strong meaning its saltier and more sour as this dish is meant to be consumed with rice like most Filipino dishes, sometimes it is accompanied by thinly sliced potatoes that are either stewed with the sauce or separately fried.
Tenderize beef with a meat mallet or a back of a cleaver, place beef in sealable containers then marinate in juice of 2 lemons, pepper and salt. Marinate for at least 24 hr.
Drain beef in a colander and set aside, before frying make sure it’s in room temperature and thoroughly drained.
In a pan, heat oil and pan fry marinated beef in very high heat for 2 minutes on each side, do not overcook otherwise it will be hard.
Remove beef from pan then set aside, now using the same pan sauté onions do not overcook.
Mix together cornstarch, water, beef stock and soy sauce. Once free of lumps pour mixture in the pan bring to a boil. Add water if you find it salty.
Once the sauce boils add remaining lemon juice (adjust to the sourness you want) and pan fried beef simmer covered for 2 minutes, season with salt and freshly ground pepper then turn off the heat. Place in serving platters then serve.