"Make easy homemade croutons for a crunchy, delicious soup topping. Get the recipe for Tomato Soup With Parmesan and Croutons...."
INGREDIENTS
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2 onions, chopped
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2 tablespoons olive oil
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kosher salt
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1 28-ounce can whole peeled tomatoes, with juices
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4 cups low-sodium chicken broth
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1 teaspoon dried oregano
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1 cup croutons
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2 ounces Parmesan, shaved