Spring Cleaning Ribollita 

Step 1

In a large Dutch oven, heat 2 tablespoons of the oil over medium. Add leek and cook, stirring occasionally, until softened, 3 minutes. Add carrot, Swiss chard stems and the remaining 2 tablespoons of oil. Season with salt and pepper, and cook, stirring occasionally, until softened, about 5 minutes. Add garlic and stir until fragrant, about 30 seconds. Crush the tomatoes over the pot with your hands, stir them in with their juice and cook, stirring occasionally, until all of the liquid is reduced and the mixture is thick, about 5 minutes. Add zucchini, basil sprigs, thyme sprigs, Swiss chard leaves and 8 cups of water, and season with salt and pepper.

Step 2

Bring to a boil over high heat, then reduce to medium-high and cook, stirring occasionally, until vegetables are tender, about 10 minutes. Stir in peas, beans and bread, and cook, stirring and mashing up the bread, until most of the bread dissolves and soup thickens, about 10 minutes. Discard basil and thyme sprigs, and season with salt and pepper to taste.

Step 3

Divide soup among bowls and finish with the chopped basil. Garnish with cheese, if desired.