Bring water to a boil in a saucepan. Add quinoa, raisins, golden raisins, and rum; reduce heat and simmer, covered, until water is absorbed, about 10 minutes. Remove from heat and keep covered, about 5 minutes.
Fluff quinoa mixture with a fork and stir in cinnamon. Ladle into 6 serving bowls; top each with 1 tablespoon maple syrup.