- olive oil
- Medium onion
- Medium tomato
- Boil the potatoes: time will vary according to quantity (between 10 and 30 minutes). Test with a knife to make sure they are well cooked. You can speed up the process by cutting the potatoes beforehand.
- Wash the tomatoes in plenty of water, if necessary add a little vinegar or lemon juice and leave to soak to make sure they are thoroughly cleaned.
- Peel the onions, chop and mix in with tomatoes and sliced potato.
- Season to taste with olive oil, vinegar, salt, pepper…