Food & Cooking Recipes Soups, Stews & Stocks Soup Recipes Slow-Cooker Ribollita Be the first to rate & review! By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on October 6, 2017 Print Rate It Share Share Tweet Pin Email Photo: Stephen Kent Johnson Servings: 4 Meaning reboiled in Italian, this hearty vegetarian soup lives up to its name. It's just as delicious on the day it's made as it is reheated. This recipe appears in our cookbook "Martha Stewart's Slow Cooker" (Clarkson Potter). Ingredients ¼ cup plus 2 tablespoons extra-virgin olive oil, plus more for serving 1 onion, finely chopped 3 cloves garlic, minced ½ teaspoon red-pepper flakes 1 bunch lacinato kale, stems removed, leaves cut into ½-inch ribbons (4 cups) 2 medium zucchini, quartered lengthwise and cut into ½-inch slices 1 large tomato, finely chopped 1 cup fresh or frozen shelled cranberry beans 1 ½ cups boiling water Kosher salt and freshly ground black pepper 2 slices country bread Finely grated Parmigiano-Reggiano, for serving Directions Preheat a 4-quart slow cooker. Heat 2 tablespoons oil in a large skillet over high. Add onion, garlic, and red-pepper flakes and cook until softened, about5 minutes. Add kale and cookuntil just wilted, 5 minutes. Transferto slow cooker. Add 1 tablespoon oil to skillet, then add zucchini and cook over high until lightly browned, 3 to 4 minutes. Transfer zucchini to slow cooker along with tomato, beans, and boiling water; season with salt and pepper. Cover and cook on high until beans are tender, 3 hours (or on low 6 hours). Heat remaining 3 tablespoons oil in a large skillet. Add bread and cook over medium, turning once or twice, until golden and crisp, 5 to 6 minutes. Let cool slightly, then tear into pieces; stir into stew in slow cooker. Coverand cook on high until thick, 1 hour more (or on low 2 hours more). Season with salt and pepper; serve, topped with grated cheese and drizzled with oil. Cook's Notes Recipe reprinted from "Martha Stewart's Slow Cooker: 110 Recipes for Flavorful, Foolproof Dishes (Including Desserts!), Plus Test-Kitchen Tips and Strategies from the Kitchens of Martha Stewart Living." Copyright 2017 by Martha Stewart Living Omnimedia, Inc. Published by Clarkson Potter/Publishers, an imprint of the Crown Publishing Group, a division of Penguin Random House LLC. Rate it Print