Ribollita Tuscan Twice Boiled Soup

Heat the olive oil in a large heavy-bottomed pot or Dutch oven over medium heat. Add the diced onion, carrots, and celery. Cook gently for about 8-10 minutes, until softened and translucent, stirring occasionally. This is your soffritto, the flavor base.

Stir in the minced garlic and cook for another minute until fragrant. Add the chopped black kale and Swiss chard, stirring until they begin to wilt, about 5-7 minutes.

Pour in the crushed tomatoes and vegetable broth. Bring the mixture to a gentle boil, then reduce the heat, cover, and simmer for at least 20 minutes to allow the flavors to meld and the vegetables to become tender.

Add the drained cannellini beans to the pot. Using the back of a spoon or a potato masher, gently mash about one-third of the beans against the side of the pot to thicken the soup slightly. Season generously with salt and freshly ground black pepper. Continue to simmer for another 10 minutes.

Arrange a layer of stale bread slices at the bottom of a large ovenproof casserole dish or individual bowls. Ladle a generous amount of the hot soup over the bread, ensuring it is completely soaked. Repeat with another layer of bread and soup, finishing with soup on top.

For the traditional "twice-boiled" effect, you can either let the soup sit for several hours (or overnight) for the bread to fully absorb the liquid, then reheat gently on the stovetop or in the oven at 180°C (350°F) for 20-30 minutes until bubbling and hot. Drizzle with extra virgin olive oil before serving.

Serve the Ribollita hot, topped with an additional drizzle of fresh extra virgin olive oil and, if desired, a sprinkle of grated Parmesan cheese. A true Tuscan experience awaits!