In electric mixer cream the butter and add the sugar and flour. Cream until fluffy.
Add both syrups and the salt, beat until smooth.
Add the eggs, one at a time, beating well after each addition.
Fold in the pecans and vanilla. Pour into the pastry shell.
Bake in a preheated
In the food processor with the steel blade process together the flour, salt, egg yolk and butter until the mixture resembles coarse meal.
Add the ice water and process just until a dough forms.
Remove and knead on a lightly floured surface into a smooth ball of dough. Press into a disc and wrap in plastic wrap. Chill for at least 2 hours.
Allow to sit at room temperature until pliable enough to roll easily.
Roll to 1/8” thickness and place in a