01Purée half the beans.
Blend about half the cannellini with 250 ml of the bean liquid or water until smooth. Keep the remaining beans whole.
The purée should be fluid enough to pour, not a stiff paste.
Ribollita is the Tuscan “reboiled” soup of cannellini beans, cavolo nero, cabbage, vegetables and stale bread, deliberately reheated after resting to become thick and cohesive.

Ribollita literally points to the cooking method: re-boiled or recooked. Visit Tuscany describes the dish as cucina povera in which vegetable-and-bean soup is thickened with stale bread and reheated the next day until dense and satisfying.
Cannellini beans play two roles. A portion is puréed into the broth to give body while whole beans remain visible for texture. Cavolo nero and Savoy cabbage supply the dark leafy character associated with Tuscan winter versions.
Stale Tuscan bread thickens the soup without flour or dairy. It is added only after the vegetables and beans are tender so it can absorb the broth without preventing vegetables from cooking evenly.
The first-day soup can be eaten, but the second heating is what gives the dish its name and most characteristic texture. After an overnight chill, the bread has fully absorbed the bean broth and the reheated pot becomes cohesive rather than soupy.
The final extra-virgin olive oil is added at the table. Its fresh aroma would be lost if all the oil were cooked for the full simmer.
Blend about half the cannellini with 250 ml of the bean liquid or water until smooth. Keep the remaining beans whole.
The purée should be fluid enough to pour, not a stiff paste.
Heat 30 g olive oil in a heavy pot. Add onion and garlic with a pinch of salt and cook over low heat for 5 minutes until translucent. Add carrot, celery and potato and cook another 5 minutes.
The vegetables should soften without browning hard.
Add cavolo nero, Savoy cabbage, remaining liquid, tomato paste, salt and pepper. Bring to a slow boil and simmer about 40 minutes, stirring occasionally.
The kale should lose its raw toughness and the potato should be nearly tender.
Stir in the blended beans and simmer 20 minutes, stirring more often as the soup thickens.
The broth should become visibly creamy without losing vegetable pieces.
Fold in the remaining cannellini and simmer 10 minutes. Adjust salt and pepper.
Whole beans should remain intact.
Stir in the bread and cook for about 10 minutes until it breaks down into the soup.
The pot should be thick enough that a spoon leaves a brief track across the surface.
Transfer the soup to shallow containers and refrigerate within 2 hours. Chill overnight.
Do not leave a large hot pot at room temperature for slow cooling.
Return the ribollita to a heavy pot with a small splash of water if it is extremely stiff. Heat slowly, stirring often, until bubbling throughout and at least 74 °C. Simmer 5–10 minutes.
The finished texture should be dense and spoonable rather than brothy.
Serve hot with the remaining 15 g extra-virgin olive oil and black pepper.
Fresh oil should be aromatic on the surface rather than cooked away.
Home-cooked cannellini and their cooking water give the fullest flavour, but well-rinsed canned beans can be used with plain water or unsalted vegetable stock.
Tuscan bread is traditionally unsalted and sturdy. A rustic country loaf is a better substitute than soft sliced bread.
The soup is edible on day one, but the overnight rest and reboiling produce the dense texture implied by its name.
Freeze cooled ribollita in portions after the first or second cook; thaw in the refrigerator and reheat thoroughly.
Estimate uses cooked cannellini, 200 g bread and measured olive oil; sodium depends heavily on bean cooking liquid or stock.
Contains wheat/gluten.
Cool the first-day soup quickly in shallow containers and refrigerate within 2 hours rather than leaving a large pot to cool slowly.
Reheat the next day until bubbling throughout and at least 74 °C; refrigerate remaining portions promptly.
The name means reboiled or recooked, reflecting the traditional practice of reheating the bread-thickened bean and vegetable soup.
It is strongly characteristic of Tuscan ribollita and gives the dark leafy flavour and texture that distinguish the dish.
Yes, but an overnight rest followed by reheating gives the most characteristic dense texture and better matches the meaning of the name.