"The high-cal element of French onion soup is the traditional thick cap of Gruyere cheese. In this version, a very thin slice of Gruyere is melted on top of the soup to give the same taste, with fewer calories. Make sure to get good quality Gruyere, and use a cheese planer, for a super-thin slice. Only 302 calories per bowl...."
INGREDIENTS
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1/4 cup olive oil
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2 large white onions, halved lengthwise and cut into 1/4-inch-thick slices crosswise
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4 sprigs fresh thyme
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2 bay leaves
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1/4 teaspoon salt
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1/4 teaspoon freshly ground pepper
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1/3 cup dry white wine
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4 cups low-sodium chicken stock
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4 (1-inch-thick) slices whole wheat baguette, toasted and cooled
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2 ounces Gruyere, shaved into paper-thin slices with a cheese plane or vegetable peeler