For this lighter version of the classic French onion soup, freshly grated Gruyère cheese is melted over whole-grain toast and served on top of the soup.
1 tablespoon extra-virgin olive oil
2 large onions, halved and thinly sliced
1/4 cup dry white wine
1 tablespoon soy sauce
6 cups beef stock or low-sodium broth
Four 1/2-inch-thick slices of whole-grain baguette
1/4 cup freshly grated Gruyère cheese
How to Make It
In a large enameled cast-iron casserole, heat the oil until shimmering. Add the onions and cook over moderate heat, stirring occasionally, until the onions are wilted and just starting to brown, about 7 minutes. Add a generous pinch of salt and cook over moderately low heat, stirring occasionally, until the onions are soft and golden, 25 to 30 minutes.
Add the wine and soy sauce to the casserole and cook over moderate heat, scraping up any browned bits from the bottom, until evaporated, about 3 minutes. Add the stock and bring to a boil. Simmer over moderately low heat, stirring occasionally, until the broth is well flavored and slightly reduced, about 10 minutes. Season the soup with salt.
Meanwhile, preheat the broiler. Arrange the bread on a baking sheet and top each piece with 1 tablespoon of the cheese. Broil 6 inches from the heat until the cheese is melted and just starting to brown, about 2 minutes. To serve, ladle the soup into bowls and top with the toast.
One Serving: 145 cal, 6 gm fat, 1.6 gm sat fat, 14 gm carb, 2 gm fiber, 8 gm protein.
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