Filetes de vacuno 100% de pasto al estilo coreano (Bulgogi)
very thinly sliced grass-fed beef strips, about 3/4 inch (2 cm) wide (such as top round, sirloin tip, rump, chuck, or shoulder) • soy sauce (use tamari if you avoid wheat, and choose a traditionally fermented one if possible) • sugar (preferably raw cane sugar, panela, coconut sugar, or honey) • medium scallions, finely chop the white part and slice the green tops thinly, reserving some of the green for garnish • garlic cloves, finely minced • dry sherry • sesame oil for marinating (or substitute with light olive oil if needed) • Oil for stir-frying (use a high-quality light olive oil for high heat; avoid polyunsaturated oils like sunflower or refined oils for frying) • Salt to taste (I used 1 teaspoon unrefined sea salt) • crushed red pepper flakes (this amount makes it noticeably spicy but not overwhelming; adjust to taste or omit if you prefer mild) • Sesame seeds (optional)