PROVENçAL VEGETABLE SOUP WITH BASIL

Steps:

• Prepare the beans: Put the beans and 5 cups water in a saucepan over high heat. Add onion stuck with clove, thyme, bay leaf, garlic, salt and olive oil. Reduce heat and cook at a gentle simmer until tender, about 25 to 30 minutes. Leave beans to cool in their own broth. (May be cooked several hours or up to 1 day in advance.)
• Make the soup: Put olive oil in a heavy-bottomed soup pot over medium-high heat. Add diced onion, season generously with salt and pepper and stir to coat. Turn heat to medium and cook, stirring until softened and barely browned, about 10 minutes.
• Add potato and 2 cups water to soup pot. Cover and cook until potatoes are soft, about 10 minutes. Add cooked shell beans and bean broth and bring to a simmer. Taste and adjust seasoning. Keep warm.
• Meanwhile, working in batches in a separate pot, blanch Romano beans, wax beans and zucchini in salted water for 1 minute. Spread out to cool on a baking sheet.
• Make the pistou: Put basil, garlic and olive oil in a food processor and pulse to a rough paste. (Alternatively, pound basil and garlic in a stone mortar and stir in oil and cheese.) Stir in about 1/2 cup grated cheese and season with salt and pepper. (Makes about 3/4 cup.)
• To serve, add blanched vegetables to soup pot and simmer for 2 to 3 minutes. Ladle into bowls and add about 2 tablespoons pistou to the center of each bowl. Pass extra grated cheese at the table.