"The BEST French Onion Soup! Using easy Homemade Croutons really puts this recipe over the top!..."
INGREDIENTS
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4 tablespoons Challenge salted butter
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1 teaspoon salt
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2 large red onions (about 5 cups) (thinly sliced)
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2 large sweet onions (about 5 cups) (thinly sliced)
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1 (32 ounce) can chicken broth
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1 (32 ounce) can beef broth
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1/2 cup red wine
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1 tablespoon Worcestershire sauce
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2 sprigs fresh parsley
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1 sprig fresh thyme leaves
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1 tablespoon balsamic vinegar
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salt and freshly ground black pepper to taste
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4 cups large homemade croutons
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2 cups shredded Gruyere Cheese
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2 cups shredded Asiago