For filling; firstly dissolve sugar in hot water.

Beat egg with milk, vanilla and salt.

Mix in sugar water.

Sift the mixture.

For crust; firstly use hand to incorporate flour with cold butter.

Add in a few tablespoons of water until the dough form into a ball.

If the dough is too dry, add water. If the dough is too wet, add flour.

Wrap in cling wrap and refrigerate for 10mins.

Fit it in mould and use fork to poke holes to let the air escape.

Pour filling into crust.

Bake in a preheated oven at 180°c for 30 minutes.