Soup au Pistou recipe

Pistou
1 cup fresh basil leaves
4 cloves garlic
2 tablespoons tomato paste
3 tablespoons olive oil
2 large peeled chopped tomatoes
125g grated cheese

Soup
6 diced potatoes
500g cooked haricot beans
1 large, finely chopped onion
500g sliced green beans
500g sliced zucchini
1 tablespoon butter
3 litres water
and the Pistou you have prepared

Pistou

Process basil, garlic, tomato paste and olive oil to a smooth paste.
Add tomato and cheese and set aside.
Soup
Melt butter and cook all vegetables until soft. Do not brown.
Add water, salt if desired and simmer gently for 1 hour.
Stir the Pistou through the soup just before serving.