The Best Way to Make Flank Steak

I'm going to share a family recipe with you today.  It's my Mom's way of making flank steak & it is one of my favorite foods of all time.  Bonus, it's super duper easy!  Pair this steak with some good potatoes & fresh green beans & you'll be sure to have a meal that pleases.  Perfect for summer... or any time really.  Here's the how:
Ingredients
1/2 cup red wine
1/4 cup olive oil
3 fresh sprigs of rosemary
4 garlic cloves pealed & smashed just until broken open
2 teaspoons salt
1/2 teaspoon pepper
flank steak
Directions
Mix all ingredients together.  Place flank steak in a baking dish.  Pour marinade over the top of the steak.  Let it sit for 20 minutes, then flip steak over & allow to sit for another 20 minutes.  Place marinated steak on a  hot grill.  Cook for 5-7 minutes per side (depending on size of steak).  Remove from grill & rest for 5-10 minutes.  Cut across the grain (very important) at an angle in thin slices.  Enjoy!