Pastry
1 cup (150g) self raising flour
½ cup (75g) plain flour
½ cup (60g) custard powder
1/3 cup (75g) CSR Raw Caster Sugar
125g unsalted butter, chilled and cubed
1 large egg, separated
¼ cup (60ml) ice cold water, approximately
Filling
10 medium Granny Smith apples, peeled, cored & thinly sliced
¼ cup (60ml) water
2 tsps lemon juice
1/3 cup (75g) CSR Raw Caster Sugar
zest of 1 lemon, finely grated
½ tsp mixed spice
½ tsp cinnamon
1 tbsp plain flour
1 tbsp CSR Raw Caster Sugar, extra for sprinkling