"[Welcome to the final installment of ? Newer, Better Month ? on Smitten Kitchen, when I update a few SK classics with new knowledge, new techniques, and with real-life time constraints in mind. Pre…..."
INGREDIENTS
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3 pounds thinly sliced yellow onions (see Tip)
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3 tablespoons unsalted butter
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Fine sea salt
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1/4 cup dry sherry, vermouth, or white wine (optional)
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1 bay leaf or a few sprigs of thyme (optional, and honestly, I rarely bother)
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2 quarts (8 cups) beef, chicken, or vegetable (mushroom is excellent here) stock, the more robust the better
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Freshly ground black pepper
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1 garlic clove
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One (3/4- to 1-inch) thick slice of bread for each bowl of soup
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1/4 cup grated gruyere, comte, or a mix of gruyere and parmesan per toast