Winter vegetable puree

1. Combine the celery root, potaotes, turnips, and leeks in a large saucepan and cover with cold water.
2. Place over medium-high heat and bring to a boil.
3. Reducei heat and simmer until all of the vegetables are tender, about 30 mins.
4. Drain well and pass the vegetables through a ricer.
5. Add salt and pepper to taste.
6. Divide among 4 plates and serve immediately.
7. "a well seasoned appetite".