Celery Root-Potato Latkes

The food processor ended the grater Reign of Terror that marked the Festival of Latkes.

But the four-sided grater offered one advantage (aside from the bits of torn knuckles so many grandmothers swore made their latkes that much more delicious): Part of the potatoes could be shredded on the coarse side, to make a crispy crust, and the rest grated rather fine, to ensure a little creamy lay