You can find mozzarella di bufala cheese in good cheese shops and Italian grocery stores. As its name suggests, this fresh mozzarella is made with buffalo milk. Since 1993, the name Mozzarella di Bufala Campana is a registered trademark, protected by the DOC label. In supermarkets, there are fresh mozzarella in two forms: small balls bocconcini or Mozzarina and a big ball much like the milky buffalo mozzarella. The Mozzarina is more expensive than the small bocconcini, but much tastier.