In this savory Filipino beef-and-onion dish, bistek Tagalog (also simply called beef steak), calamansi juice tenderizes the beef and makes it more flavorful. The citrus fruit, a staple of Filipino and Southeast Asian cooking, is also called calamondin or Philippine lime and tastes like a very tart combination of lemon, lime and orange. Serve with steamed rice.
To make ahead
Marinate beef (Step 1) for up to 4 hours.
People with celiac disease or gluten sensitivity should use soy sauces that are labeled "gluten-free," as soy sauce may contain wheat or other gluten-containing ingredients.