INGREDIENTS
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4 Tbsp. olive oil
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2 Tbsp. butter
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6 cups yellow onions, thinly sliced
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1 tsp salt
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1/2 tsp sugar
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3 Tbsp. flour
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6 cups beef stock
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1 cup white wine
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1/2 tsp ground sage
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1 whole bay leaf
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1 loaf french bread, or baguette
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2 Tbsp. olive oil
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1/2 an onion, grated
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3 Tbsp. cognac (optional)
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12 oz swiss cheese, grated
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Salt, to taste
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Pepper, to taste
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4 oz parmesan cheese, grated