In a heavy bottomed pot (or whatever saucepan you have) combine apples, water and cinnamon. Bring to a boil over medium, to medium-high, heat. Reduce heat, and simmer. Stir occasionally to prevent burning.
If the sauce is starting to stick, add a 1/4 cup of water as needed.
Once apples have broken down, you can help them along with a potato masher, if desired. If you are seeking a smooth consistency, use an immersion blender.
Taste for seasoning and adjust. Different apple types have different sugar content so if more sweetness is needed, stir in some sugar and let it cook for another 5-10 minutes on low. (Sugar is rarely needed but it is a preference.)
