Add the cranberries to a small casserole dish, pour the balsamic mixture over the cranberries, and stir to combine. Cover with foil and bake for 15 minutes, or until softened. Remove foil, add honey, and stir well. Let stand 10 minutes then stir again. At this point, the cranberries should lose their form, the juices should thicken, and mixture should look like chutney/jam. Set aside until ready to use. Decrease oven heat to 400 degrees F to roast the sweet potato slices.