Preheat oven to 350°F and place pie crust into a 9-inch pie dish.

Whisk melted butter and sugar until smooth, then add eggs one at a time.

Stir in cocoa powder and vanilla, mixing until fully combined.

Slowly whisk in evaporated milk until the filling is silky.

Pour filling into pie crust and spread evenly.

Mix coconut, pecans, and salt, then sprinkle over the filling.

Bake for 40 to 45 minutes until set around the edges.

Cool completely before slicing and serving.