For the choux pastry, bring the Trex, water, salt, sugar to the boil in a large saucepan. Heat gently until melted before adding the flour and salt. Beat well on lower heat for 5 minutes until it forms a smooth paste.
Transfer the mixture to a piping bag, and pipe around 28 small balls on to the baking tray. Place in the oven for 20 minutes to bake until golden brown. Pierce one with a skewer and place back in the oven (switched off) for 5 minutes.
For the filling, whip the cream, cream cheese and sugar together. Fold in the ginger. When the profiteroles are cold, use a piping bag to place the cream in to the profiteroles.