Puff Pastry Chicken Pot Pie
Ingredients:
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1 (17.5 ounce) package frozen puff pastry, thawed
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⅓ cup butter
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½ medium onion, chopped
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1 stalk celery, sliced
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⅓ cup flour
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1 teaspoon salt
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½ teaspoon ground black pepper
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½ teaspoon celery seed
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1 cup milk
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2 cups chicken broth
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1 pound cooked chicken breast, cubed
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1 (12 ounce) package frozen mixed vegetables