Step 1

Preheat oven to 190C.

Step 2

Sift the flour and custard powder into a bowl.

Step 3

Rub in butter with fingertips until it resembles breadcrumbs.

Step 4

Stir in sugar.

Step 5

Mix in yolk and water with a knife to form a soft dough.

Step 6

Cover with plastic wrap and refrigerate for 30 minutes.

Step 7

Lightly grease a 20 cm pie plate.

Step 8

Roll out pastry between 2 sheets of baking paper and line the pie plate. Trim the edge.

Step 9

Line with crumpled baking paper, fill with beans or baking beads and bake for 10 minutes.

Step 10

Remove paper and beads and bake another 5 minutes until the base is dry. Remove from oven and cool.

Step 11

Reduce oven temperature to 160C.

Step 12

Custard: Whisk the eggs, yolks, vanilla and sugar in a bowl. Add the cream and combine.

Step 13

Pour into cooled pastry case and sprinkle with nutmeg.

Step 14

Bake 50-55 minutes until set but not too firm.