Translated as bird’s milk, referring to the delicate soufflé-like texture of the filling, Ptasie Mleczko is a popular Polish confectionery that was first produced in 1936 by the E. Wedel company. The classic version consists of a firm but creamy vanilla-flavored meringue that is covered in a thin layer of chocolate, while modern varieties come in a wide array of flavors such as chocolate, lemon, or strawberry.