Bring the milk, sugar and salt to the boil in a saucepan. Slowly stir in the semolina and bring to the boil. Remove the pan from the heat and let it rest for a few minutes before adding the egg yolks.
Spread the mixture about 1.5 cm thick on a damp board or baking tray. After cooling, cut into squares or triangles, as you like.
Turn the corners in the flour, egg and breadcrumbs and fry in a pan with a little butter until golden brown. Serve warm, preferably with applesauce and vanilla sauce or traditionally with sugar and cinnamon.