Ingredients
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- ¼ c. Soy Sauce
- ¼ c. Balsamic Vinegar
- 1 Tbsp. Brown Sugar
- 1 Tsp. Fresh Thyme Leaves
- ¼ Tsp. Ground Pepper
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- 1 Beef Skirt Steak
- 1 Medium Red Onion
- 8 Slices of Sourdough Bread
- 2 Medium Ripe Tomatoes
- 1 Bunch Arugula
Directions
In large self-sealing plastic bag, mix soy sauce, vinegar, sugar, thyme, and pepper. Add steak to marinade, Seal bag, pressing out excess air. Place bag on plate; let stand 15 minutes at room temperature or 1 hour in the refrigerator.
Meanwhile, for easier handling, insert 1 long metal skewer horizontally through onion slices; set aside. Prepare grill or broiler direct grilling over medium heat.
Remove steak from marinade; pour marinade into 1-quart saucepan. Heat marinade over high heat to boiling; boil 2 minutes.
Place steak and onion slices on hot grill or broiler. Cook steak and onion 12 to 15 minutes or until onions are browned and tender and meat is medium-rare, brushing both with marinade occasionally and turning both over once. Transfer steak to cutting board.
Thinly slice steak diagonally across the grain. Arrange onion rings and steak on 4 slices of bread; spoon any meat juices from board over onion and steak. Top with tomatoes, arugula, and remaining 4 slices of bread.