Lettuce Soup

Recipe first for 4 people based on Lettuce salad.

Preparation:

Preparation: Melt the butter in a saucepan, season with the chopped onion and then add the washed, dried and cut into strips lettuce. Add 3/4 of water and cook over low heat for about twenty minutes. Add the diced potatoes and continue cooking for more or less an hour. Blend everything for a long time to obtain a thick and creamy mixture. Pour the smoothie into a pot, adjust salt and pepper, heat. Meanwhile, in a tureen, beat the eggs with the cheese and pour over the hot lettuce soup. Serve with slices of lightly buttered and toasted bread.