Add cranberries, sugar, cider vinegar, India spice and salt to a small pot and stir to combine. Cook over medium-low heat, stirring occasionally, until the cranberries have burst and mixture begins to thicken, about 10 minutes. \nMeanwhile, in a small bowl, whisk together the apple cider and gelatin. Allow to sit for 5 minutes, allowing the gelatin to bloom. \nWhile cranberry mixture is still warm, but not scalding, add apple cider\/gelatin mixture and stir to combine. Let cool slightly. \nPour cranberry mixture into cans, filling all the way to the rim. Allow to set in the refrigerator for at least 5 hours. \nOnce the gelatin has set, open the bottom of the can and push cranberry sauce out onto a plate.