Place the dough in the prepared tin with the baking paper. Prick the base with a fork.
Mix the apples with all the ingredients up to and including the vanilla, spoon onto the pastry dough.
Cut the dough into strips of varying widths. Plait a few strips into braids. Place the strips and braids on top of the pie in any pattern you like, press down well and brush with egg yolk.
For approx. 35 mins. in the bottom half of an oven preheated to 200°C. Remove from the oven, allow to cool slightly and serve while still warm.