Preheat the oven to 170°C (340°F) and toast the pecans for 8–10 minutes.
Add the ground almonds in a bowl (a pinch of salt is optional), then add the melted coconut oil, maple syrup and stir until the mixture looks like damp sand.
Press the crust evenly into a 22cm (9-inch) tart tin, smoothing and compacting it with the back of a spoon.
Place the crust in the freezer for 10 minutes to firm up, then bake for 10–12 minutes until lightly golden around the edges.
Let it cool slightly.
Whisk the eggs, maple syrup, vanilla extract, cornflour/cornstarch *, coconut oil and salt in a bowl until smooth, then stir in the 50g chopped pecans.* To avoid any lumps, I add the cornflour to a small bowl first, then pour in 3–4 tablespoons of the maple and coconut oil mixture. Once it turns smooth and fully dissolved, I add it back into the main bowl with the rest of the wet ingredients.
Pour the filling into the cooled crust, top with the whole pecans and bake at 180°C (350°F) for 26 minutes until set in the centre.