Thoroughly wash 1 kg potatoes of very small size in lukewarm water.
2: Drain and transfer them to a large saucepan. Use this opportunity to check each potato, trimming off any eyes and bad bits, and discard any black, green or damaged potatoes.
3:
First-stage cooking: boiling
Cover the potatoes with cold water and bring to the boil. Boil until the potatoes are just barely cooked.