Today is a perfect day for soup and this family loves soup.  I was a little hesitant to make use this recipe because I have never cooked with kale, escarole (which is also known as endive and chicory), and leeks.  But I gave it a try anyway.  It looks really pretty - it is a very colorful soup. 

Makes about 4 quarts, serving 10 to 12.   Published January 1, 2001.  

If possible, use fresh dried beans in this soup. For a more authentic soup, place a small slice of lightly toasted Italian bread in the bottom of each bowl and ladle the soup over. To make this a vegetarian soup, omit the pancetta and add a 4-ounce piece of Parmesan rind to the pot along with the halved onion and unpeeled garlic in step 1.

Instructions

1. 1. In large, heavy-bottomed Dutch oven, cook pancetta over medium heat until just golden, 8 to 10 minutes. Add 12 cups water, beans, halved onion, unpeeled garlic, bay leaf, and 1 teaspoon salt; bring to boil over medium-high heat. Cover pot partially; reduce heat to low, and simmer, stirring occasionally, until beans are almost tender, 1 to 1 1/4 hours. Remove beans from heat, cover, and let stand until beans are tender, about 30 minutes. Drain beans, reserving cooking liquid; discard pancetta, onion, garlic, and bay leaf. Spread beans in even layer on baking sheet and cool.

2. 2. While beans are cooling, heat oil in now-empty Dutch oven over medium heat until shimmering; add carrots, celery, leeks, and diced onion and cook, stirring occasionally, until softened but not browned, about 7 minutes. Stir in minced garlic and cook until fragrant, about 30 seconds. Add enough water to reserved bean cooking liquid to equal 9 cups, add to pot with kale and escarole. Increase heat to medium-high and bring to boil; cover, reduce heat to low, and simmer 30 minutes. Add potatoes and tomatoes; cover and cook until potatoes are tender, about 20 minutes. Add cooled beans; increase heat to medium-high and bring to simmer. Submerge rosemary sprig in liquid; cover and let stand off heat 15 to 20 minutes. Discard rosemary, and season to taste with salt and pepper. Ladle soup into individual bowls, drizzle each bowl with extra-virgin olive oil, and serve.

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