Peel, core, and slice apples. I use a gadget like this one
, which cuts the work time way down! Don’t worry if you have some peel on the apples, it’s just a texture preference (and the peel contains lots of healthy nutrients!). You could leave the peel on completely if you want even, just make sure to get rid of the core and seeds. Put apples into a large pot (I use a 6 ½ quart pot for 13 pounds of apples). Once you have about a third of the apples cut, turn the heat on to medium. Keep adding apples until you have a mountain of them—they cook down significantly so pile them on.