Apple & Root Vegetable Hash

 

Coarse salt and freshly ground pepper

3/4 pound celery root, peeled and cut into 1/2-inch pieces (2 C.)

3/4 pound Yukon Gold potatoes, peeled and cut into 1/2-inch pieces (2 C.)

3/4 pound sweet potatoes, peeled and cut into 1/2-inch pieces (2 C.)

1/4 C. extra-virgin olive oil, divided

1 onion, diced

2 small firm, sweet apples, peeled and cut into 1/2-inch pieces (2 1/2 C.)

1/4 C. roughly chopped fresh sage leaves

 

Bring a medium pot of water to a boil, and generously season with salt. Add celery root, and simmer 3 minutes. Add potatoes and sweet potatoes, and simmer vegetables 2 minutes more. Drain well and spread vegetables on a rimmed baking sheet. Let cool 15 minutes. Heat 2 T. oil in a large (preferably cast-iron) skillet over medium-high heat and cook onions until translucent and just beginning to color, about 2 minutes. Add remaining 2 T. oil, the apples, and vegetables; season with salt and pepper. Stir to combine, then press into a single layer using a spatula. Cook, undisturbed, 2 minutes. Stir, and repeat process until vegetables are very tender and beginning to caramelize, 8 to 10 minutes more. Remove from heat. Stir in sage, and season with salt and pepper.