Prepare the dough
Preheat the oven to gas 4, 180°C, fan 160°C. Put 80 ml whole milk, 3/4 tsp salt, ¾ tsp sugar, 80g unsalted butter and 80ml water into a saucepan, melt and bring to a boil. Remove from the heat, add 80g plain flour and mix to form a dough. Return to the heat and cook for 2 minutes, stirring vigorously.