Pressure Cooker Ribollita With Smoked Mozzarella Toasts
Published January 23, 2020
- Total Time
- 2 hours
- Rating
- Comments
- Read comments
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Ingredients
FOR THE SOUP
¼ cup olive oil, plus more for drizzling
1 large yellow or red onion, finely chopped
Kosher salt and black pepper
1 large leek, trimmed, white and light green parts sliced
3 celery stalks, finely chopped
1 small fennel bulb, trimmed, cored and finely chopped, fronds reserved
14 garlic cloves, smashed and roughly chopped
2 dried bay leaves
1 teaspoon red-pepper flakes, plus more for serving
1 cup dry white wine
5 cups chicken or vegetable stock
1 ½ cups dried white beans, such as cannellini or great Northern (no need to soak)
1 (15-ounce) can crushed tomatoes
3 fresh thyme sprigs or 1 teaspoon dried thyme
1 fresh rosemary sprig or ½ teaspoon dried rosemary
2 tablespoons fresh lemon juice (from about ½ lemon)
1 bunch kale, chard or collards (about 12 ounces), stemmed and finely chopped, or 1 (10-ounce) bag frozen chopped spinach or kale
2 teaspoons balsamic vinegar, preferably aged
FOR THE TOASTS
8 slices crusty bread, for serving
1 garlic clove, cut in half
Olive oil
8 ounces smoked or regular mozzarella, cut into 8 (¼-inch-thick) slices
Preparation
- Step 1
Turn on the sauté setting of a 6- to 8-quart electric pressure cooker and heat the oil. Add the onion, season with salt, and cook, stirring occasionally, until limp and translucent, 6 to 8 minutes. Add the leek, celery and fennel, season with salt, and cook, stirring occasionally, until softened and fragrant, about 8 minutes. Add the chopped garlic, bay leaves, red-pepper flakes and white wine; season with a generous amount of pepper. Stir well and let the wine come to a simmer before turning off the heat.
- Step 2
Add the stock, beans, tomatoes, thyme, rosemary and lemon juice. Cook on high pressure until the beans are creamy, 50 minutes to 1 hour.
- Step 3
Allow the pressure to release naturally for 10 minutes, then release the remaining pressure manually. Turn on the sauté setting. Remove and discard the bay leaves and herb sprigs (if using). Stir in the greens and vinegar.
- Step 4
Let the greens cook, stirring occasionally, while you make the toasts: Turn on the broiler. Rub the bread slices with the halved garlic and drizzle them with olive oil. Position a rack 6 inches from the broiler, and toast the slices until very light golden, 1 to 2 minutes. Add 1 slice of mozzarella to each toast and broil until softened and browned in spots.
- Step 5
Season the soup to taste with salt and pepper. Divide the soup among bowls, adding a mozzarella toast in each bowl. Top with the reserved fennel fronds and black pepper or red-pepper flakes, if desired.
Private Notes
Comments
This was delicious! My only tweak is to pressure-cook for 50 minutes, stir (so the uncooked beans at the top get integrated), and pressure-cook for another 15 or so. I also didn't bother with the mozzerella: grating parm into the soup was fine and toasting and rubbing the bread with garlic was enough (and more Tuscan). As close to ribollita as I am likely to get on my own!
I would encourage people to substitue liberally and not worry too much about lacking some of the ingredients. This is a great recipe for pantry cooking in time of coronavirus (I did also get a fresh veggie delivery which helps!). I used fresh spinach as the greens and canned beans instead of dry. No fennel, celery, bay leaves or rosemary, but I had the other ingredients. Pressure cooked for only 20 minutes. Made for a delicious meal... well probably 5 meals or so!
Tasty! I will reduce the wine a bit next time as it as more prominent than I wanted. I couldn't bring myself to use 14 cloves of garlic, 4 large cloves was plenty. My beans cooked through but I did take the advice of another commenter and first pressure cooked for 45 min., opened, stirred and then pressure cooked for another 15. I had a feeling my 4 yo wouldn't eat as is so I buzzed a 1/2 of final product with a stick blender, used as a sauce on the mozzarella toasts with more spinach. Homerun.
I love this recipe and come back to it often during sweater weather. I always add a Parmesan rind before pressure cooking, sometimes two, and otherwise deviate as my crisper drawer necessitates (that is I will add extra veggies if they need a home, like cabbage) but am always faithful to the spirit of the recipe. Right now I’m making it for a friend who just had a baby. Do use balsamic at the end, or more lemon, or both, and maybe extra chili flakes on the table. Feels like a hug.
After reading comments about cooking time for beans, I decided to adhere to the guidance I have followed for many years. I did not add salt until after the beans were cooked. They were soft and creamy after exactly 50 minutes. I also threw in a Parmesan cheese rind, which added depth to the flavor
Delicious. If you can't get or can't afford fresh fennel where you live, a quarter teaspoon of anise seed (plus some extra celery) is a decent surrogate.

