"Gratineed onion soup is an ultimate comfort food. Butter-soft, caramelized onions are cooked down into a rich, seasoned beef stock. Top it off with fresh garlic croutons and melted, bubbly Gruyere cheese and you have a rich soup, indeed. Add a small salad and a glass of wine to make it a meal. Would you like to receive recipes and cooking tips every week? Sign up for your free French food newsletter here and put some flair into your everyday kitchen...."
INGREDIENTS
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5 tablespoons butter
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2 tablespoons olive oil
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2 pound yellow onions, peeled, halved, and cut into 1/4-inch slices
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3/4 teaspoon granulated sugar
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1/2 teaspoon dried thyme
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1/2 teaspoon salt
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1/4 teaspoon ground black pepper
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1 tablespoon plus 1 teaspoon all-purpose flour
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10 cups good-quality beef stock
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2/3 cup dry white wine
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Croutons and Cheese Topping:
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12 (1/2-inch thick) slices baguette,
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1 large clove garlic, halved
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2 tablespoons olive oil
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2 cups grated Gruyere cheese
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6 ovenproof soup crocks