Minestrone
Vegetable stock is an essential ingredient in many vegetarian soups, but it also provides incomparable flavor to many well-loved vegetable (but not necessarily meat-free) soups such as this one. Minestrone has become so familiar in the American kitchen that it might be easy to forget its Italian origins. But the name—minestre is the word for soup, while the suffix (-one) indicates bigness—hints at its universal appeal as a simple pantry-based soup that is also hearty and substantial. The foundation of flavor, called a soffritto, is a common element in soup-making: a trio of celery, carrots, and onion is sautéed first, then stock and more vegetables are added and slowly simmered to coax out their flavors. Beans are what distinguish minestrone from other vegetable soups; the type varies by region, as does the addition (if any) of pasta or rice (this version has neither). The beans are also what give the soup such heft, making it a good option for a meatless one-pot dish (if you leave out the prosciutto) that can stand as the centerpiece of any casual dinner. The beans need to soak overnight in the refrigerator, so plan accordingly. Then they need to boil for at least a half hour, so use that time to prepare the rest of the ingredients for the soffritto and soup.
Recipe information
Yield
Serves 6 to 8
Ingredients
For beans
For soffritto
For soup
Preparation
Step 1
Soak and cook beans Place beans in a large bowl and cover with cold water by 2 inches. Refrigerate 8 to 12 hours, then drain. Combine beans and 8 cups water in a large saucepan. Add onion, bay leaf, and prosciutto ends, if using. Bring to a boil, then reduce heat and simmer until beans are just tender (but not at all mushy, as they should hold their shape in the soup), 30 to 45 minutes. Drain, reserving beans and 4 cups liquid; strain liquid. Discard onion, bay leaf, and prosciutto, and cover beans.
Step 2
Meanwhile, cook soffritto Heat the oil in a large stockpot over medium-low heat until shimmering. Add celery, carrot, and onions, and cook, stirring often to prevent them from scorching on the bottom, until deep golden brown, 20 to 25 minutes.
Step 3
Cook vegetables Add leek and garlic to soffritto and cook, stirring often, until soft, about 4 minutes. Raise heat to medium-high, then add sliced celery and carrots along with the potato, zucchini, and green beans. Cook, stirring often, until vegetables are golden, about 5 minutes.
Step 4
Make soup Stir in reserved bean liquid, the tomatoes and juice, kale, cabbage, stock, cheese rind, prosciutto ends (if using), bay leaf, and red pepper flakes; season with salt and black pepper. Bring to a boil, then reduce heat to a simmer. Cover and cook 1 hour.
Step 5
Add beans Stir in beans and continue cooking until all vegetables are very tender, 20 to 30 minutes more.
Step 6
Serve Ladle into bowls, incorporating beans and vegetables in each, and top with pesto and grated cheese, if desired. The soup can be refrigerated in an airtight container up to 3 days; thin with water, if necessary, before reheating over gentle heat.
Ingredients
Step 7
The soup is traditionally flavored with scraps of cheese and ham, which every frugal Italian home cook keeps in the larder. This recipe calls for end pieces of prosciutto (the bit left when the rest has been sliced), available from many butchers, and the rind from a wedge of Parmigiano-Reggiano cheese. It’s a good idea to save these rinds so you can add them to this and other vegetable soups; wrap them in plastic and freeze in resealable plastic bags.
Step 8
Tuscan kale is also called cavalo nero and dino kale; look for it at greenmarkets, Italian groceries, and some supermarkets, or substitute regular kale.
