Niçoise Salad with Red Tuna

Wash the potatoes thoroughly, boil them in their skins until tender, then let them cool. Once cooled, cut them into 2 cm thick slices.

Boil the eggs until hard, then cool them in cold water and peel them.

Cut the green beans in half and cook for 4 minutes in 1 liter of boiling water, to which 1 tablespoon of sugar has been added. Then immediately place them in ice water to preserve their vibrant color, then drain.