Blanch the tomatoes for five minutes in hot water. Put the tomatoes under cold running water Peel the tomatoes, split in half, remove seeds, cut

Grind the coriander seeds in a mortar with a pestle Remove the leaves from the coriander and set aside Chop the coriander stalks Add to

Put sliced lemon in water for 24 hours. Do not peel the thin outer yellow skin. Change the water. Keep the lemon in water for

Crush in a mortar garlic and grains of coarse salt until you have a smooth paste. Add pine nuts or walnuts Add the Parmiggiano Reggiano