We don't know who thought of it first, but making the pecan filling with maple syrup, instead of the more customary (and highly processed) corn syrup, was a stroke of genius. This pie is delicious. We added a bit of lemon juice, which prevents the sweetness from becoming cloying. Don't be concerned if the pie appears thin — this makes for a good balance between filling and pastry.
Cooks' note:
Pie can be made 6 hours ahead and kept at room temperature.