Combine the cranberries, orange juice concentrate, cinnamon, and maple syrup together in a medium saucepan. Zest the orange using a Microplane or zester over the saucepan and give everything a good mix to combine.
Bring the mixture to a boil over medium-high heat. Once boiling, reduce the heat to low and simmer for 20-30 minutes, stirring every couple of minutes, until berries have burst and juices begin to thicken. Be sure to watch the sauce closely as it simmers, so that the sauce does not burn. If you notice too much liquid evaporating, add in ¼ cup of water or orange juice at a time.
Cool slightly to thicken and serve warm or refrigerate for up to 5 days and serve cold.
Consistency: If you would like a thicker cranberry sauce, simply simmer a bit longer. For a thinner sauce, add an additional ¼ cup of water to the ingredients and simmer for only 15-20 minutes.Cinnamon: For a milder cinnamon flavor, omit the ground cinnamon and add 2 cinnamon sticks to the sauce while it simmers. Remove the cinnamon sticks before serving. Sweetness: Feel free to use an additional 2 tablespoons of maple syrup for a sweeter cranberry sauce. If you don't care to use maple syrup, replace it with equal parts honey or granulated sugar.Storage: Once the cranberry sauce is cooled slightly, store in the fridge for up to 5 days or freeze in an airtight container, leaving 1-inch of space for expansion for up to 3 months ahead of use. Thaw in the refrigerator the night before using.Be sure to watch your cranberry sauce closely as it comes to a boil, because of the natural sugars in the orange juice concentrate and maple syrup, it can burn quickly. Turn to a low simmer IMMEDIATELY once sauce comes to a boil.Using Fresh Orange Juice: If you would like to replace the orange juice concentrate with the juice of fresh oranges, simply zest the oranges and then cut the orange open to squeeze the juice out. You will need at least ¼ cup of fresh orange juice. You will also need to add ¼ cup of additional water and an additional 2-4 tablespoons of sweetener, depending on how sweet you like your cranberry sauce.