Italian Soak: 2 tablespoons minced red onion in cold water, 15 minutes; drain. Pile 1/2 garlic clove, 2 tablespoons fresh parsley, 1 teaspoon dried oregano and 1/2 teaspoon kosher salt on aboard; chop and mash into a paste. Whisk with 2 tablespoons red wine vinegar and the onion. Gradually whisk in 1/2 cup olive oil.