1. Preheat your oven to 175°C.

2. In a mixing bowl, combine almond flour, coconut flour, and powdered erythritol for the crust. Mix well.

3. Add melted butter to the dry mixture and stir until a dough forms.

4. Press the dough into a greased 9-inch pie dish, covering the bottom and sides evenly.

5. Bake the crust in the preheated oven for about 10 minutes or until lightly golden. Remove from the oven and set aside.

6. In another bowl, whisk together sugar-free maple syrup, powdered erythritol, eggs, melted butter, and vanilla extract until well combined.

7. Arrange the pecan halves evenly over the baked crust.

8. Pour the filling mixture over the pecans, ensuring they are fully covered.

9. Place the pie dish back in the oven and bake for about 35-40 minutes or until the filling is set and slightly firm to touch.

10. Once done, remove the pie from the oven and let it cool completely before serving.

11. You can refrigerate the pie for a few hours to enhance its flavor and texture.

12. Slice and serve your delicious Keto Pecan Pie!

Enjoy your homemade Keto Pecan Pie while staying in ketosis!