Categories: Soup
Ingredients
- 1/2 cup olive oil
- 2 garlic cloves, sliced
- 2 large yellow onions, halved and thinly sliced crosswise
- 1 tbsp salt
- 28 oz can San Marzano tomatoes
- 4 cups water
- 6 slices hearty whole-wheat bread
- 6 thin slices provolone cheese
- 1/3 cup grated Pecorino Romano cheese
Directions
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Heat the olive oil in a stockpot over medium heat. Add the garlic, onion, and salt and cook, stirring frequently, for about 15 minutes, until they are very soft and golden.
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Add the tomatoes and water and bring to a boil. Reduce the heat to low, cover, and simmer for 45 minutes. Remove the lid and continue to simmer for another 15 minutes to thicken the soup.
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Just before serving, toast the bread slices. Place one slice of bread in the bottom of each of 6 soup bowls and top each with a slice of the provolone. Ladle the soup into the bowls, being carefully to include a good portion of the onions in each.
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Serve hot, garnished with the Pecorino Romano cheese.