Make choux pastry: sift the flour and salt. Put the water and fat in a saucepan and when the fat has melted bring to boiling-point. Add the sifted flour all at once and beat well over the heat until the mixture leaves the sides of the pan —about 1 min. Allow to cool slightly and add the beaten eggs gradually and then vanilla essence to taste, beating well.
Heat the deep fat until it is just beginning to haze. Grease
Dredge with castor sugar and serve hot.