"We're revealing our French Onion Soup Secret Ingredient! Or rather, six of them to be exact for the best french onion soup ever!..."
INGREDIENTS
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5 large Spanish or Vidalia onions
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5 large red onions
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3 TBL butter
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1 cup port wine
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10 oz beef stock
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10 oz chicken stock
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10 oz apple cider (unfiltered)
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Bouquet garni: thyme sprigs (bay leaf and parsley wrapped in a bundle of cheesecloth)
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Eggs (one per serving)
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Kosher salt
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Ground black pepper
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1 cup fontina or gruyere cheese (grated)