Celeriac Purée

Assemble these supplies:

• 2 to 3 knobs celeriac (about 2 pounds)
• 8 tablespoons salted butter (1 stick)
• Salt and freshly ground white pepper
• Freshly grated nutmeg
• 4 tablespoons finely chopped fresh parsley

Steps in preparation:

1. Peel celeriac and cut into 1/2-inch slices. 
2. Place in vegeta­ble steamer and steam over boiling water about 10 minutes, or until tender.
3. Chop steamed celeriac coarsely and puree it in food processor or food mill.
4. Melt butter and stir in puree. 
5. Add salt, white pepper, and nutmeg to taste. 
6. When heated through, cover and keep warm until serving time.
7. Sprinkle 1 tablespoon fresh parsley over each serving.