INGREDIENTS
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5-6 cups yellow onions, thinly sliced
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1 tablespoon cooking oil
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2 tablespoons butter
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1/2 teaspoon sugar
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1 teaspoon salt
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3 tablespoons flour
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6 cups beef stock (better if homemade)
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1/2 cup wine (dry white wine or dry white vermouth)
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8 slices French bread, about 1-inch thick
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4 tablespoons olive oil for drizzling
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Salt and pepper to taste
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2-3 tablespoons cognac
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1/2 raw yellow onion, grated
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12 ounces Swiss cheese, grated
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4 ounces parmesan cheese, grated