Marinated Flank Steak Sandwiches with Charred Onions Recipe :: The Meatwave

Ingredients

• For the Steak
• 3 tablespoons canola or vegetable oil
• 2 tablespoons lemon juice
• 2 tablespoons soy sauce
• 2 tablespoons Worcestershire sauce
• 1 tablespoon Dijon mustard
• 1 tablespoon dark brown sugar
• 1 tablespoon freshly ground black pepper
• 2 teaspoons kosher salt
• 2 teaspoons finely minced garlic (about 2 medium cloves)
• 1 pound flank steak
• For the Garlic-Herb Butter
• 4 tablespoons unsalted butter, softened
• 2 teaspoons finely minced garlic
• 1 teaspoon finely minced chives
• 1 teaspoon finely minced thyme
• 1 teaspoon finely minced parsley
• 1 teaspoon kosher salt
• For the Onions and to Serve
• 1 large onion, cut into 1/2-inch slices and skewered horizontally so the rings lie flat on the grill
• 1 tablespoon canola or vegetable oil, for brushing
• 1 large ciabatta loaf, halved lengthwise and sliced into 4 equal portions
• 1/4 pound sliced mild provolone cheese
• 1 large handful arugula