Name: Potato and Celery Root Mash
Yield: Makes 6–8 servings
Ingredients: 2 1/2 pounds mixed russet, Yukon Gold, and white-skinned potatoes, peeled, cut into 2" cubes; 1 1-pound celery root (celeriac), peeled, cut into 3/4" cubes; 1 6" piece of horseradish, peeled, coarsely grated; 1 1/2 cups sour cream; 3 tablespoons Dijon mustard; 2 tablespoons (1/4 stick) unsalted butter; Kosher salt

Image may contain Ice Cream Food Creme Dessert and Cream

Potato and Celery Root MashChristopher Baker

This mash gets a punch of flavor from freshly grated horseradish. Use a combination of potato varieties to add more texture.

Recipe notes

See Related Recipes and Cooking Tips

21 Ways to Make Mashed Potatoes
There's more than one way to creamy, dreamy potato deliciousness.
10 Mashes for Your Holiday Table
Potatoes are just the beginning.
An Ode to Celery Root
Don't forget about this ugly duckling root vegetable.