In a food processor, combine the flour, salt and butter. Then pour in the water, 1 tbsp. at a time, until the dough forms.
Form the dough into 2 balls, place on a sheet of parchment paper, and put in the fridge for 1 hour. (You will use 1 ball for this recipe - save the other and make another pie!)
Preheat the oven to 325 degrees.
For the Filling
Combine the flax seeds with 9 tbsp. warm water, stir and set aside (stir often).
In a large mixing bowl, combine the sugars, flour, vanilla, and salt. Slowly add the melted butter, flax mixture, and almond milk. Stir in the pecans.
Prep the Pie
Remove the crust from the fridge. Using a rolling pin, roll out the crust on a sheet of parchment paper. Then remove the crust from the paper and place in your pie pan.
Using a fork, make several holes along the sides and bottom of the pie crust.
Pour the filling into the crust, and bake for 55 minutes, watching to ensure the filling browns but does not burn.