"French Onion Soup Stuffed Mushrooms Recipe - My favorite French Onion Soup meets stuffed mushrooms in this delicious appetizer recipe! ..."
INGREDIENTS
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24 whole fresh mushrooms (cleaned and stems removed with stems chopped)
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1 medium onion (thinly sliced)
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1 tablespoon butter
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1/4 cup beef broth
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1 slice sourdough bread
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1/2 teaspoon Stone House Seasoning
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1/2 cup grated Gruyere cheese
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1/4 cup grated Parmesan cheese
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chopped fresh parsley (optional)