Combine the lemon peel and the port wine, and allow to infuse overnight.
Strain lemon peel.
Combine wine and remaining ingredients in a large plastic bucket.
Mix well for 2-3 minutes using an immersion blender.
Place in batch freezer and process according to machine instructions.
Recipe Notes
Please Note: This recipe contains alcohol. Do not serve to patrons under age. Check your local government agency for information on selling and serving products containing alcohol.