01 - Boil the potatoes in salted water until tender, about 12–15 minutes. Drain well and allow to steam dry for 2 minutes.
02 - Mash the potatoes until smooth. Add the butter and milk; mix until creamy and lump-free. Let cool for 5 minutes.
03 - Stir in the flour, salt, and pepper. Mix to form a soft, slightly sticky dough.
04 - Turn the dough onto a lightly floured surface. Gently knead for 1–2 minutes, then pat into a disc about 1/2 inch thick. Cut into rounds using a 2 3/4 inch cutter or slice into triangles.
05 - Heat a non-stick skillet or griddle over medium heat and melt a little butter. Fry the potato cakes in batches for 3–4 minutes per side, until golden brown and crisp. Add more butter as needed.
06 - Serve warm, ideally with butter, scallions, or alongside a full Irish breakfast.