INGREDIENTS
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2 tablespoons olive oil
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4 ounces pancetta, diced
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1 small red onion, halved
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1 carrot, halved
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2 cloves garlic, smashed
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1/4 teaspoon red pepper flakes
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3/4 teaspoon kosher salt
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Two 14-ounce cans finely chopped or crushed tomatoes, such as Mutti
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2 cups low-sodium chicken broth or vegetable broth, plus up to 1 cup more
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4 cups stale bread cubes (1-inch cubes)
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2 sprigs basil
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One 2-inch piece Parmesan rind
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1 cup freshly grated Parmesan
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1/4 cup freshly grated Parmesan
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3 tablespoons extra-virgin olive oil
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2 tablespoons chopped fresh basil