Best French Onion Soup

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Appears in Cook's Illustrated January/February 2008, America's Test Kitchen TV

If you're taking the time to make this soup, it better be perfect. Luckily, we discovered the secret for coaxing deep flavors out of your onions for the perfect soup.

SERVES 6

TIME 4¾ to 5¼ hours

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WHY THIS RECIPE WORKS

With too many onion soups, digging through a layer of congealed cheese unearths a disappointing broth that just doesn’t taste like onions. The ideal French onion soup combines a satisfying broth redolent of sweet caramelized onions with a s...

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