Peel, core, and chop your apples. If you have an apple wedger, that works really well. Wedge the apples, then peel the sections. If you have an apple peeler/corer/slicer, use that. If you just have a knife, then cut the apples in half and half again. This is super easy, I promise.
Put the lid on the crockpot, turn it on low, and walk away. In a 3-4 hours, come back and look at it. Stir the apples.
Repeat, stirring every 3-4 hours until the apple wedges turn into applesauce.
Taste your applesauce. If you want it to be a little sweeter, add ½ cup of sugar. (I usually do add a little sugar.) Next, add some cinnamon and a wee bit of pumpkin pie spice. I try to stick to a 3:1 ratio on those, but please, go with your tastebuds. Keep tasting and add spices until it's perfect.
Let the applesauce cook another hour or so to blend the flavors. It's done and ready to eat.