Most, if not all, pies are difficult to cut and remove slices cleanly and neatly from a deep-dish pie pan, but this is especially true of a pie that's crumbly, gooey and slippery. If you use a pie pan, just accept that the first, and maybe even the second, piece of pie will not come out looking beautiful. But it will still taste fantastic! Consider using a tart pan with a removable bottom if you want to more easily serve pretty slices of pie. Since the sides of the pan are removed and the pie sits on the base, it's far easier to slide a cake server in from the side to remove a piece of pie.