Rutabaga, Celery Root, and Potato Gratin
This recipe for a three-root gratin is reinvigorated by a hearty combination of rutabaga and celery root. Rutabaga and celery root bring an earthy depth and an engaging, subtle sweetness, giving a classic gratin a flavorful lift. Classic gratins lean on heaps of Gruyère; here, robust Parmigiano-Reggiano cuts in with more intense flavor, accentuating the root vegetables instead of smothering them. The salty bite of the Parmesan, along with the brightness from the celery root, transforms what could be a stodgy side into a reimagined classic that will have you coming back for seconds. Use a mandoline to slice the vegetables for best results.