Provençal Vegetable Soup With Basil

Preparation

1. Step 1

   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.)

2. Step 2

   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.

3. Step 3

   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.

4. Step 4

   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.

5. Step 5

   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 ½ cup grated cheese and season with salt and pepper. (Makes about ¾ cup.)

6. Step 6

   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.