01 - Boil the potatoes in salted water until fork-tender, approximately 15 minutes. Drain thoroughly and return to the pot to steam off excess moisture.
02 - While still hot, mash the potatoes until smooth and lump-free.
03 - Add the butter and milk to the potatoes, mixing well.
04 - In a large bowl, combine the flour, salt, and baking powder. Add the warm potato mixture and gently mix to form a soft dough.
05 - Turn the dough onto a floured surface and knead briefly until smooth. Pat or roll out to approximately 1/2 inch thickness.
06 - Cut the dough into 8 triangles or rounds.
07 - Heat a non-stick skillet or griddle over medium heat. Cook the bread slices in batches, approximately 3 to 4 minutes per side, until golden and crisp.
08 - Serve warm, generously spread with butter.