First peel, core, and slice apples. I recommend using an apple slicer to slice, peel and core all your apples.
Combine and heat ingredients and bring to a simmer.
2 1/2 cups Sugar, 2 Tbsp Cinnamon, 1/4 tsp Salt, 3 3/4 cups Water, 1/2 cup Lemon Juice
Next, add apples and stir altogether. Heat just until boiling. Turn off and remove from heat. When measuring your apples press down and fit as many apples as you can.
12 cups Apples
Apple pie filling is ready to use or store. If you are making an apple pie place on top of apple pie crust (follow pie crust directions for heating).
Optional: If you would like to thicken up the apple pie filling you can combine cornstarch and water to make a slurry. You may go this route if you are using the filling immediately, placing in the fridge or freezer.