Our mom's steak marinade is the BEST! It's been in our family forever. Mix a few simple ingredients together for the marinade; this steak is so moist and flavorful.
Mix together vegetable oil, Worcestershire sauce, pepper, apple cider vinegar, soy sauce, dry mustard, and lemon juice in a Ziploc bag or an airtight container (like tupperware or rubbermaid).
Add 3 pounds of steak (about 6) to the marinade (any cut of steak will work).
Store in fridge to marinate for about 8 hours. Flip over the steaks halfway through marinating.
Grill over medium-high heat to your liking
Notes
We like to marinade the steak for 8 hours and sometimes we have let it marinate overnight. If you are in a hurry, try to let it marinate for at least 4 hours.