So what does BN stand for? Biscuiterie Nantaise. Indeed, Nantes has been a capital of the French cookie industry, ever since cookie-making became the mainstay of the city's economy in the 19th century.
Nothing could be simpler, or tastier, than this classic treat, in which a layer of chocolate is sandwiched between two cookies. This cookie is definitely a classic of our traditional goûter not only among children but also adults!