How to make
The dock is cleaned, washed and scalded in boiling water for about 2-3 minutes. Take it out, strain it and finely chop it.
Beat an egg in a bowl. Add crumbled white cheese and chopped spinach to it.
The chilled sheet of puff pastry is spread out on the worktop or table.
Spread the egg mixture evenly over the surface of the dough, then roll it up into a roll. Put it in the refrigerator for about half an hour, so that the dough can set, then cut it into slices using a sharp knife.
The cut puff pastry rolls are arranged on a tray lined with baking paper and placed in an oven heated to 390°F (200°C) and bake the puff pastries, until they aquire a golden color.