Preheat the oven to 350ºF / 180ºC degrees and line two mini muffin tins with paper liners.
Make the dough by placing the pecans, flour, sugar and salt into a food processor and pulsing until the nuts are ground and all ingredients are combined.
Add the butter and continue to pulse until the mixture resembles sand.
With the processor running slowly add the ice water until the dough comes together then remove onto a floured surface.
Divide the dough into 24 pieces and roll each one into a circle then press into a lined muffin hole.
Bake until the crusts are golden around 15 to 20 minutes.
To make the filling, in a bowl whisk the whole egg and egg yolk, corn syrup, sugar, pumpkin pie filling and vanilla then stir in the chopped pecans.
Remove the crusts from the oven and add one tablespoon of pie filling into each mini crust. Top with one pecan half then bake for between 12 to 20 minutes more just until the filling is set.
Allow to cool completely in the baking tin.