Arrange the remaining pecan halves evenly in the pastry case and carefully pour over the syrup mixture. Place into the preheated oven and bake for 40-50 minutes - the pie will be golden-brown ...
Add the vanilla extract and stir in the pecans. Pour the pecan filling into the baked pastry and bake in the oven for 30-40 minutes until set. Cool and serve with vanilla ice cream or double cream.