Preheat oven to 190°C/fan 170°C/gas mark 5.
Rub the Fate Low Protein All-Purpose Mix and the margarine together in a mixing bowl until it resembles coarse breadcrumbs.
Mix the sugar into the water until dissolved and combine with the Fate mixture.
Leave to rest for 10 minutes.
Dust a clean work surface with Fate Low Protein All-Purpose Mix and knead the pastry for a minute on the work surface until smooth.
Roll the pastry out between two pieces of grease proof paper, with a rolling pin to a 28cm circle and using the rolling pin, lift the pastry into the pie dish, making sure that you press the edges.
Cut the excess pastry off the sides and using a fork, prick the pastry base all over.
Spread 2 tbsp of sugar on the base of the pastry.
Arrange the apple slices on top in a layered pattern.
Mix together the remaining sugar and the cinnamon and sprinkle on top of the tart.
Bake for 30 minutes then remove, drizzle on the golden syrup and serve.
Fate Low Protein All-Purpose Mix is a food for special medical purposes and should be used under medical supervision.