Chicken and Pastry | America's Test Kitchen

Ingredients

• 1 1/2 cups (7½ ounces/213 grams) all-purpose flour
• 2 teaspoons baking powder
• 1/2 teaspoon table salt
• 1/2 teaspoon pepper
• 1/2 cup milk
• 2 tablespoons unsalted butter , melted, plus 1 tablespoon unsalted butter
• 2 pounds bone-in chicken thighs , trimmed
• 4 cups chicken broth
• 1 cup water
• 1 onion , peeled and halved through root end
• 1 celery rib , halved crosswise