and butter in a medium sauce pan over medium heat. cook until the butter is melted and the mixture comes to a boil. add the flour all at once, stirring vigorously with a wooden spoon. continue stirring until the mixture is smooth and uniform and pulls away from the side of the pan – this will take about 1 to 3 minutes.
transfer the mixture to a standing mixer and add the eggs one at a time, beating well after each addition. you can also do this by hand with a wooden spoon, though it will take longer. as you add the eggs, the mixture will break apart and look a 