Preheat your oven to 350°F (175°C). Grease a 9-inch pie pan.
In a mixing bowl, combine almond flour, powdered sweetener, salt, melted butter, and the beaten egg, and mix until it forms a dough.
Press the dough evenly into the bottom and sides of the prepared pie pan.
Bake the crust for 10 minutes, then remove it from the oven and set aside to cool.
In a saucepan, melt the butter over medium heat. Add the sugar-free syrup and granular sweetener, stirring until fully combined.
Take the saucepan off the heat and let it cool slightly before whisking in the beaten eggs and vanilla extract.
Spread the pecans evenly over the cooled crust.
Pour the prepared filling over the pecans, ensuring they are well covered.
Bake for 35-40 minutes until the filling is mostly set but still slightly wobbly in the center.
Allow the pie to cool completely before slicing so that the filling can firm up properly.