Pour the coconut milk, Keto Chow, two tablespoons of allulose, and coconut extract into a large mixing bowl.
Use an electric mixer to beat the mixture until combined, thick, and creamy.
Stir all but one tablespoon of the reserved half cup of toasted coconut into the coconut milk mixture.
In a separate mixing bowl, combine the heavy whipping cream, the remaining two tablespoons of allulose, and the vanilla extract.
Whip the cream with the electric mixer, until it’s at least doubled in volume and holds stiff peaks when the beaters are removed from the bowl.
Fold about one third of the whipped cream into the coconut mixture.
Remove the crust from the freezer. Pour the coconut mixture into the crust. Smooth it to the edges of the crust.
Pile the rest of the whipped cream in the center of the pie so that it looks like a billowing cloud. Sprinkle the last tablespoon of toasted coconut on the whipped cream for garnish.
Chill the pie in the refrigerator for at least an hour before serving.