Preheat oven to 400°. Spray a 3-quart baking dish with cooking spray.
In prepared pan, place potatoes; sprinkle with cranberries.
In a large saucepan, stir together sugar and all remaining ingredients. Bring to a boil over medium-high heat, stirring occasionally; boil, without stirring, until sugar dissolves, 2 to 3 minutes. (Watch mixture carefully; it can boil over quickly.) Pour hot sugar mixture over potato mixture, and cover with foil.
Bake for 30 minutes. Uncover and bake, carefully stirring every 10 minutes, until potatoes are fork-tender and liquid in bottom of pan is thickened, about 30 minutes more. Let cool for 10 minutes. Serve warm.
Notes
Kitchen Tip Cane syrup can be substituted for maple syrup.
Recipe by Louisiana Cookin' at https://louisianacookin.com/citrus-cranberry-candied-sweet-potatoes/