M.A. Kitchen
Step 1: Make the chipotle salsa.
Step 2: Combine beef stock, cumin, pepper, a dash of salt, and oil in a small bowl. Stir well and set it aside.
Step 3: Heat 3 tablespoons of oil, stir-fry the steak for 30 seconds, then add the beef stock mixture. Cook for 2 minutes, keeping the meat juicy.
Step 4: Assemble your tacos and enjoy!