- 2 pounds celeriac (celery root), peeled and cut into 1/2-inch cubes
- 1/4 cup sour cream, or more to taste
- 1/2 teaspoon dried dill weed, or more to taste
- salt and ground black pepper to taste
- Place celeriac into a large pot and cover with salted water; bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes. Drain and transfer to a large bowl.
- Mash celeriac, sour cream, and dill together in a large bowl with a potato masher until smooth. Season with salt and pepper.