Grilled Balsamic and Soy Marinated Flank Steak

**Ingredients:** - 1/2 onion, small, roughly chopped - 3 garlic clove, roughly chopped - 1/4 cup olive oil - 1/4 cup balsamic vinegar - 1/4 cup soy sauce - 1 tablespoon Dijon mustard - 1 tablespoon rosemary - 1 teaspoon salt - 1/2 teaspoon freshly cracked black pepper - 1 flank steak, about 1-1/2 Ibs. **Instructions:** 1\. Prepare the grill. Combine onion, garlic, oil, vinegar, soy, mustard, rosemary, salt and pepper in a mixing owl using a wire whisk or an immersion (hand) blender until well combined, about 20 seconds. 2\. Place meat in large casserole-style dish. Pour marinade over meat. Marinate for a minimum of 30 minutes or up to 2 days. 4\. Place marinated flank steak on grill over hot coals. Brush with extra marinade throughout grilling. Grill until golden and cooked to desired doneness, about 6-8 minutes on each sic {medium-rare). Transfer grilled flank steak to a serving plate or dish to collect juices. 4\. Using a sharp knife, slice the meat thinly. 5 Serve slices with desired accompaniments; drizzle with collected meat juices.