Peel the potatoes and cook them in salted water.
Mash them into a purée.
Add the cheese portions, salt, pepper, half an egg, parsley, and chives.
Mix until you obtain a smooth, homogeneous purée.
Refrigerate for 30 minutes to firm up the mixture.
Shaping the Samosas or rolls:
On each brick pastry sheet, place a slice of sandwich cheese.
Add a spoonful of purée, then a small Gouda stick.
Sprinkle with oregano or Espelette pepper to taste.
Roll the cheese slice around the filling, then wrap it in the brick pastry sheet to form a cigar shape.
Seal the ends with a little egg yolk.
Breading:
Dip each cigar first in all-purpose flour, then in beaten egg, and finally in breadcrumbs.
Fry in hot oil over medium heat until golden brown.
Drain on paper towels.
Alternatively, you can bake them in the oven or air fryer after lightly spraying with oil.