At least 1-hour ahead, divide generous ice cream scoops into 6 dessert bowls or coffee cups. Place back into freezer to firm up and chill dishes completely.
Shave dark chocolate for garnish, cover and set aside in a cool place.
Immediately before serving, brew 6 (4 oz) cups espresso
Pour 4 oz of espresso over each dish, quickly garnish with chocolate shavings and serve right away.
If you are using liqueur, drizzle a small amount into each dish before garnishing with chocolate.
Serve with Biscoff or Pirouette cookies on the side.