Peel the potatoes and cook them in a saucepan with water. Drain the water, let the potatoes cool down briefly and mash. Now preheat the oven well to 230 ° C top / bottom heat.
Add the flour and salt to the mashed potatoes and knead well.
Now roll out an approx. 1.5 cm thick dough circle on a baking sheet lined with baking paper. If necessary, pre-cut 6 - 8 pieces. Bake the dough until golden brown. Then turn and do the same here. Bake for about 20-25 minutes on each side.