Cook the potatoes until tender. Peel them & mash them. This can be done ahead of time, or use leftover potatoes. Add the salt & flour to the potatoes & knead the mixture well. Roll it out thinly on a floured board & cut into rounds or triangles. Bake at 260ºC for 10 minutes, turning them after 5 minutes. Serve warm with golden syrup or jam.