The Base Mash
Process: Place boiled potatoes in a large bowl. Mash them until completely smooth and free of lumps.
Flavor: Add the shredded mozzarella, garlic powder, salt, and fresh parsley to the warm mash.
Form the Potato Dough
Bind: Add the egg and gradually incorporate the flour.
Knead: Knead by hand until a soft, cohesive dough forms. It should be pliable and hold together without being excessively sticky.
Portion and Roll
Divide: Cut the dough into 8 equal pieces and roll them into smooth balls.
Flatten: On a floured surface, use a rolling pin to roll each ball into a thin circle (approx. 1/4 inch thick).
The Pan-Sear
Heat: Lightly grease a non-stick skillet or griddle with butter over medium heat.
Cook: Fry each flatbread for 2–3 minutes per side.
Identify: Look for golden-brown "leopard spots" to appear on both surfaces.
Stack and Slice
Layer: As they come off the heat, brush each piece with butter and stack them on top of each other.
Serve: Cut the stack into wedges like a pizza and serve while the cheese inside is still melty.