½ onion, chopped 3 cloves garlic, chopped ¼ cup olive oil ¼ cup balsamic vinegar ¼ cup soy sauce 1 tablespoon Dijon mustard 1 tablespoon rosemary 1 teaspoon salt ½ teaspoon ground black pepper Whisk onion, garlic, olive oil, balsamic vinegar, soy sauce, Dijon mustard, rosemary, salt, and pepper... more