Place the cranberries, water, and maple syrup in a small saucepan and stir to combine.
3 cups (12 ounces) cranberries, 1/2 cup maple syrup, 1/2 cup water
Over medium heat, bring the mixture to a simmer, stirring frequently.
Lower the heat slightly and let the mixture continue to simmer for 10-12 minutes (or until at least half the berries have popped), stirring occasionally.
Pour the cranberry sauce into a glass dish (preferably what you plan to serve it in), and let it cool. It will continue to thicken as it cools.
Enjoy immediately or, the best flavor, chill overnight (or up to a week) before serving.