Preheat oven to 350F. Oil a 6" pie plate (or see notes above for alternative dish sizes). Set aside.
Process all crust ingredients in a food processor until the mixture begins to form a ball (note if the mixture is too runny, add a bit more flour, if too dry, add a bit more maple syrup). Form the mixture into a ball with your hands and knead briefly, then flatten into a disk with your hands (if making a larger pie, you can roll the disk out with a rolling pin between two sheets of parchment). Place the dough disk inside the pie dish and form into a crust along the base and walls with your hands.. Sprinkle the base evenly with the crushed pecan pieces (in filling ingredients). Set aside.
Place all remaining filling ingredients in a small blender (I used the magic bullet again) and process until smooth. Pour this mixture over the crust and the pecans. (Note: it will be very liquid at this stage -- that is normal. It will set as it bakes).
Bake in a preheated oven for 45 minutes. Allow the pie to cool thoroughly to set before slicing (ideally overnight or at least a few hours). Enjoy!