Preheat your oven to 350°F (175°C).
Prepare the pie crust by combining flour, butter, sugar, and salt in a bowl.
Add cold water gradually, mixing until the dough holds together.
Roll out the dough and cut it into circles to fit mini pie pans.
Fit the dough circles into the mini pie pans and chill for about 15 minutes.
In a mixing bowl, combine pecans, corn syrup, brown sugar, eggs, vanilla, and cinnamon.
Pour the filling into the prepared crusts, filling each about 3/4 full.
Bake for 20 to 25 minutes, or until the filling is set and the crust is golden.
Let the mini pecan pies cool before serving.