Preheat the oven to 375°F.
Mix together the eggs, maple syrup, maple extract, vanilla extract and butter.
Sprinkle with flour, salt, cinnamon and nutmeg.
Whisk until smooth.
Spread the nuts in the bottom of a prepared pie shell.
Pour the maple syrup/egg mixture over the nuts.
Place in the preheated oven on the middle rack.
Place a cookie sheet on the rack underneath to catch any drips.
Bake at 375°F for 40 to 45 minutes. (Halfway through the baking time, you may want to tent the pie with foil to prevent over-browning of the crust. The surface of the pie may rise and crack while cooking; that’s fine. It will deflate while cooling.
Remove the pie from the oven and allow it to cool completely before serving.