Preheat the oven to 180°C and line a large baking sheet with baking paper.
1 Put the water and butter in a saucepan over medium heat and stir for 3-4 minutes or until the butter melts and the mixture just comes to the boil.
2 Add the flour and, using a wooden spoon, beat until well combined. Cook over low heat for 1-2 minutes while stirring until the mixture forms a ball and begins to come away from the sides. Set aside for 5 minutes to cool slightly. Add the eggs one at a time, beating with the wooden spoon until well combined.