To make the crust, stir together the walnuts, cocoa powder, and sweetener, then mix in the melted butter.
Press the mixture into the bottom of your pan. Place in the refrigerator or freezer to firm up while you make the filling.
To make the filling, beat the cream cheese until light and fluffy, then mix in the sour cream.
Add the Keto Chow, sweetener, and mint extract. Blend until fully combined. If the mixture looks too thick, add heavy cream a tablespoon at a time until it is spreadable.
If the mixture looks too thick, add heavy cream a tablespoon at a time until it is spreadable.
Mix in the chopped chocolate and spread the filling onto the prepared crust.
Chill for at least four hours or overnight.
Garnish with whipped cream, chocolate curls, and mint leaves if desired.