1. Combine apples, cider, lemon juice, spices, and salt in a large pot. Bring to a boil over high heat, then reduce heat, cover, and simmer, stirring occasionally, until apples are very tender, 25 to 30 minutes. Uncover; simmer until almost all liquid has evaporated, 10 minutes.

2. Season apple mixture with lemon zest. Mash with a potato masher until chunky (or puree in a blender or food processor for a smoother texture). Let cool completely. Serve, sprinkled with more cinnamon, or store in an airtight container in refrigerator up to 1 week, or in freezer up to 3 months.