Ingredients

4 pounds celery root (about 2 large), peeled and cut into 1-inch pieces

1/2 pound new potatoes, peeled and cut into 1-inch pieces

1 cup half-and-half

4 tablespoons butter

Coarse salt

Preparation

Set a steamer basket in a large pot. Fill with enough water to come just below basket; bring to a boil. Add celery root and potatoes; reduce to a simmer, cover, and cook until tender, 15 to 20 minutes.

Working in batches, transfer celery root, potatoes, half-and-half, and butter to a food processor; puree until smooth. Season with salt.