"This is authentic "French" onion soup. It is not difficult to make and the hands on process is only toward the end of the recipe. The onions do require a lot of time in the oven to caramelize. But it is well worth it...."
INGREDIENTS
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Soup
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3 tablespoons unsalted butter, cut into 6 pieces
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6 large yellow onions (about 4 pounds), halved and cut pole to pole into 1/4-inch-thick slices (do NOT substitute for any other type of onion)
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2 cups water, plus extra for deglazing
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1/2 cup dry sherry or cooking sherry
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4 cups low-sodium chicken broth
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2 cups beef broth
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4-6 sprigs fresh thyme, tied with kitchen twine (Do not overdo it here)
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1 bay leaf
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1/2 teaspoon sea salt
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Ground black pepper
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Cheese Croutons
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1 small baguette, cut into 1/2-inch slices (If making gluten free, omit bread or better yet, use a hearty gluten free bread, like Udi's)
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8 ounces shredded Gruyère cheese (about 2 1/2 cups)