The U-No Bar is produced by the Annabelle Candy Company.
It is a truffle type bar with almond bits covered in chocolate and comes wrapped in a silver foil-like wrapper. It is comparable to a 3 Musketeers except it has a much higher fat content compared to 3 Musketeers with a much thinner chocolate shell and more moussy nougat. U-no bars used to come in two flavors: Original and mint. Annabelle Candy Company has since discontinued the mint flavor.
It was first produced by the Cardinet Candy Company, which was later acquired by the Annabelle Candy Company.