3 cups water
3 cups white sugar
3 clementine oranges, quartered
5 maraschino cherries, or more to taste
1 cinnamon stick
2 tablespoons bitters, or to taste
Bring water and sugar to a boil in a saucepan; remove from heat. Stir oranges, cherries, and cinnamon stick into sugar mixture. Cover saucepan and steep for 1 hour.
Remove fruit and cinnamon stick from mixture using a slotted spoon; stir in bitters.