Roll out the dough on a floured surface into an approx. 20 x 50 cm rectangle.
Spread the melted butter on the dough with the pastry brush.
Sprinkle the dough evenly with the cocoa sugar.
Teig an der langen Seite – so eng es geht – aufrollen und schneiden in 1 - 2 cm dicke Scheiben schneiden.
Carefully place each snail on a baking sheet lined with baking paper. Alternatively, you can freeze the brutes now.
Let the snails rise for about 1 hour at room temperature.
Preheat the oven to 175 degrees.
Mix egg yolks with milk.
Carefully spread egg milk onto the snails with a pastry brush.
Schnecken ca. 20 - 25 Minuten gold-gelb backen.
Let the snails cool down a bit, sprinkle with powdered sugar and serve immediately.