Here is my favorite recipe for crockpot applesauce:
3 pounds apples (Granny Smith work well), peeled, cored and sliced
1/2 cup brown sugar, packed
1 1/2 tablespoons lemon juice
Put everything in crockpot.
Cook on high for 3-4 hours,
mash with a potato masher
add 1 tsp ground cinnamon at end, if desired.
Most recipes tell you to put water in. DON'T DO IT! Our applesauce always ends up way too runny when we add water. The water in the apples is enough all by itself. If you like chunky applesauce, like we do, just use the potato masher a little less....if you like it smooth, mash more or you can even put it in a blender.