Bake the potatoes on a tray at two hundred degrees in the stove for an hour, remove. Break open the still warm potatoes with a spoon and scoop them out. Press through potato ricer and cool on a countertop.
For the dough, press an indentation in the center of the potatoes, add eggs and salt, add a little potato mixture and sift the flour over it. Knead everything into a smooth dough and let it rest for a quarter of an hour.
For the filling, peel the onions and chop them finely. Melt the butter in a frying pan and gently sauté the onions and the chopped kitchen herbs. Season.
Roll out the dough on a floured surface to a thickness of five millimeters. Spread the cooled onion-spice mixture evenly over the dough. Cut dough into pieces about four centimeters wide and twenty centimeters long, roll them up in a spiral and place them against each other in a buttered baking dish. Bake in a heated oven (two hundred °C for about twenty-five minutes.
Mix all the ingredients for the glaze. Remove the pastry snails from the oven, pour the glaze over them, put them back into the oven and bake for another forty-five minutes.
Our tip: As an alternative to fresh herbs, you can also use frozen ones – they also stand out for their fresh taste!