Boil the potatoes in salted water for 25 minutes or more depending on the size until cooked(Dicing the potatoes up will make things go faster but I prefer cooking them whole because they maintain more of their flavor and natural sweetness)
Drain let it cool and peel
Cut the potatoes into cubes, the same goes for tomato then put into a bowl with the onion, parsley, then mix together the olive oil and vinegar Stir in the finely the corn

Serve
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