Cut the apples lengthwise into sixths, but do not peel or core. Place them in a heavy saucepan. Lightly crush the ginger under the flat side of a knife to release its flavor, and add it to the pan along with about 2 cups of the wine.
Place saucepan over medium-high heat, bring the mixture to a simmer, and cook until the apples are soft, about 15 minutes.
Add the sugar to the apple mixture and stir until it dissolves, about 2 minutes. Remove the pan from the heat. Scoop out and discard the ginger.
Carefully pass the cooked apples and their liquid through a food mill, fitted with the fine disk, placed over a bowl. Stir in the remaining wine, cover the bowl, and refrigerate until the mixture is chilled, about 2 hours.
Transfer the cool mixture to an ice cream maker and freeze according to the manufacturer’s directions. Spoon the apple sorbet into a container, cover, and place it in the freezer until firm, about 2 hours.
Spoon the sorbet into clear glass bowls to serve. Bask in the glory of the adulation.