Ingredients
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1/4 lb unsalted butter
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1 bay leaf
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1/2 cup medium-dry sherry
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1/2 cup cognac or 1/2 cup brandy
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1 1/2 cups dry white wine
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4 cups beef stock
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4 cups chicken stock
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1 tablespoon salt
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1/2 teaspoon white pepper
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cheese crouton
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1 small baguette, cut into 1/2-inch slices
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2 1/2 cups gruyere cheese, shredded
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2 1/2 lbs yellow onions, halved, and sliced 1/4-inch thick (8 cups)
Instructions
- In a large stockpot on medium-high heat, saute the onions with the butter and bay leaf for 20 minutes, until the onions turn a rich golden brown color. Deglaze the pan with the sherry and brandy and simmer uncovered for 5 minutes. Add the white wine and simmer uncovered for 15 more minutes.
- Add the beef and chicken stocks plus salt and pepper. Bring to a boil, then simmer uncovered for 20 minutes. Remove the bay leaf, taste for salt and pepper.
- *For the croutons*.
- While the soup simmers, arrange the baguette slices in single layer on baking sheet and bake in a 400-degree oven until the bread is dry, crisp, and golden at edges, about 10 minutes. Set aside.
- *To serve*.
- Adjust oven rack 6 inches from broiler element and heat broiler. Set individual broiler-safe crocks on baking sheet and fill each with about 1 3/4 cups soup. Top each bowl with 1 or 2 baguette slices (do not overlap slices) and sprinkle evenly with Gruyère. Broil until cheese is melted and bubbly around edges, 3 to 5 minutes. Let cool 5 minutes before serving.