INGREDIENTS
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1 sheet frozen, store-bought puff pastry, thawed
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1 1/2 cups carrots, chopped
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1 cup potato, diced
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3/4 cup vegetable broth
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1/2 cup (1 stick) unsalted butter
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1/2 onion, chopped
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4 cloves garlic, minced
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3 tablespoons all-purpose flour
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2 tablespoons heavy cream
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2 tablespoons extra-virgin olive oil
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2 teaspoons dried thyme
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1/2 teaspoon dried oregano
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1/4 teaspoon ground mustard seed
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kosher salt and freshly ground pepper, to taste