This is an incredibly easy 3-ingredient dish that will wow guests at any potluck or holiday gathering. It doesn't seem like much - just cream cheese, caramel and crushed skor bars. But when you combine them and refrigerate overnight, it becomes a tangy, sweet and crunchy dip for apple slices. In a class dish or pie plate, spread the cream cheese into a thick layer. Cover the cheese layer with caramel. Spread into an even layer over the cream cheese. Crush the Skor bars into small crumbs by…