Ingredients

3/4 cup dried navy beans

4 leeks (1/2 pounds), white and light-green parts only

1 teaspoon olive oil

1 medium clove garlic, peeled and thinly sliced

1 medium clove garlic, peeled and thinly sliced

2 tablespoons coarsely chopped flat-leaf parsley

̇ teaspoon finely chopped rosemary leaves

1/2 teaspoon finely chopped thyme leaves

2 large carrots, peeled and cut into ̇-inch dice

2 medium all-purpose potatoes, peeled and cut into ̇-inch dice

1/4 teaspoon freshly ground pepper

8 cups homemade or low-sodium canned chicken stock, skimmed of fat

1 teaspoon salt

1/4 cup finely grated Gruyere cheese

6 half-inch-thick slices country-style bread

1/2 pound fresh spinach, washed, stemmed, and sliced into 1/4-inch strips

1/4 cup fresh chervil, for garnish

Preparation

Place navy beans in a large bowl andadd water to cover. Let soak overnight inthe refrigerator.

Fill a large bowl with cold water. Sliceleeks into 1/4-inch rounds; add to water.Let sit for about 5 to 10 minutes to rid them of dirt and sand. Lift leeks out ofwater and drain in a colander. Set aside.

In a medium, heavy-bottomed stockpot,heat olive oil over medium-low heat. Addleeks and garlic; sauté until translucent,stirring occasionally, about 6 minutes.Add parsley, rosemary, thyme, carrots,potatoes, and pepper. Cover and cook,stirring occasionally, 10 to 15 minutes;lower heat if mixture browns.

Drain beans, discarding soaking liquid.Add beans and stock to vegetables. Cover, bring to a boil, and reduce heat to low;cook until beans are tender, about 40minutes. About 10 minutes before thebeans are done, add salt.

Meanwhile, heat oven to 400 degrees. SprinkleGruyere over bread. Place on a cookiesheet; toast until cheese is melted andgolden, about 10 minutes.

. Add spinach to soup; cook 1 to 2 minutes more. Divide soup among bowls andserve immediately, garnished with chervil,if desired, and Gruyere toast.