Preheat the oven: Preheat your oven to 350°F (175°C). Lightly grease your pie pan.
Make the crust: In a large mixing bowl, combine almond flour, melted butter, sweetener, vanilla and salt Spread it evenly and pat it into the bottom of your pie pan. Give it a good 10 minutes bake and let it cool.
Toast the pecans: Spread pecans onto a baking sheet and roast in the oven for 5-7 minutes. Remove and let cool.
Prepare the filling: Melt butter in a saucepan over low heat. Include sweetener and sugar-free maple-esque syrup. Stir until fully dissolved. Take off heat and allow to cool a little.
Add the eggs: Add eggs (one at a time), vanilla, cinnamon, and salt; whisk until smooth.
Assemble the pie: Evenly sprinkle the crust with the pecans. Then, the filling mixture goes right on top.
Bake: Bake for 35-40 minutes or until center is no longer liquid but still slightly jiggly.
Cool and serve: Let pie rest at least 1 hour before serving. Serve warm or chilled.