INGREDIENTS
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4 bulbs garlic, divided
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2 teaspoons olive oil
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Dash sea salt
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2 tablespoons unsalted butter
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1 yellow onion, chopped
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1 tablespoon fresh sage, torn
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4 cups vegetable broth
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1 cup milk
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4 wedges lemon
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4 sprigs fresh thyme
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2 ounces Parmesan cheese, grated (optional)