A roze koek is a Dutch pastry. It consists of a round, flat, dense cake with a layer of pink fondant icing, similar to black and white cookies.
In the city of Amsterdam and in Belgium, the cakes are sometimes referred to as moesselientjes ("little Mussolinis"); this name, which is the Dutch adaptation of Benito Mussolini's name, is rooted in the cake's tradition of being sold in Italian ice-cream parlours in Amsterdam prior to the Second World War.