Place the cubed apples into a 6 to 8 quart slow cooker.
Add the water, lemon juice, and cinnamon, stir to combine.
Place on low heat 5-6 hours or on high 3-4 hours, stirring occasionally if you can.
Once the apples are very soft, you can break them up with a spoon if you like chunky applesauce or use an immersion blender to make it smooth.
Taste and add brown sugar if desired; I suggest adding up to ¼ cup. Serve warm or allow it to come to room temperature, place in an airtight container and chill.
Notes
Weighing Apples - Weigh the apples AFTER they have been peeled and cored. You want 1 & ½ pounds of both varieties.
Types of Apples - You can use any variety of apples you like; we find Granny Smith and Fuji make a fantastic combo. Some other suggestions: McIntosh, Golden Delicious, and Honeycrisp.
Cooked Applesauce - The amount of applesauce you are leftover with depends on how long it cooks for, the longer it cooks, the more it will reduce.
Versatile - Applesauce can be served hot or cold.
More Ideas - Add apple pie spice, pumpkin pie spice, or a little nutmeg for a twist.