Citrus is nice.
Most of all, it provides a high-alcohol beverage that your wives, moms, and female friends can enjoy if they find your homebrew repulsive. Bring cider to a boil. Add honey, sugars, and molassas. Boiling will kill all wild yeasts present in the honey and cider. Best if you boil off about 1 gallon of cider, and top off in primary fermenter with boiled water to five gallon mark.