Balsamic vinegar, a, specialty of Modena, Italy, is made from white Trebbiano grape juice, aged in wood barrels to a dark, pungent sweetness. Made by Monari Federzoni's ancient family recipe, its mellowed in oak casks for a deep, rich vinegar with an intense, sweet flavor and a mild acidity. Use for salad dressings and to finish sauces. Delicious on sliced fresh tomatoes, with buffalo mozzarella and fragrant basil.