Step 1

Preheat oven to 180°C. Line a baking tray with baking paper.

Step 2

Combine flours, custard powder and icing sugar in a food processor. Process for 20 seconds until well combined. Add butter and process until mixture resembles fine breadcrumbs. Add egg and water. Process until mixture comes together in a ball.

Step 3

Remove dough from food processor. Knead gently until smooth. Cut in half. Flatten each half into a 2cm-thick disc. Wrap in greaseproof paper. Place in fridge to rest for 20 minutes.

Step 4

Roll each piece of pastry out into a 26cm square. Place 1 piece onto prepared tray.

Step 5

Combine pie apple, fruit medley and mixed spice. Spoon over pastry, leaving a 1cm border. Place second square of pastry on top. Press edges together.

Step 6

Bake for 40 to 45 minutes or until pastry is firm and light golden. Cool for 10 minutes before cutting into squares. Dust with icing sugar. Serve with clotted cream or ice-cream, if desired.