Begin by peeling, coring, and chopping the apples into small pieces.
In a large pot, combine the chopped apples, water, sugar, and lemon juice if using. Stir well to mix all ingredients evenly.
Cover the pot and cook over medium heat for about 30 minutes, stirring occasionally. The apples will soften and begin to break down.
If you prefer a smoother consistency, you can use a blender or food processor to puree the applesauce until it reaches your desired texture. If you like it chunky, you can skip this step.
Once the applesauce is ready, taste and adjust sweetness or add cinnamon if desired.
Allow the applesauce to cool slightly before transferring it to jars or airtight containers for storage.
Store any leftover applesauce in the refrigerator for up to one week or freeze for up to six months.