Halve the rutabaga, peel, wash and cut into smaller pieces. Peel, wash and halve the potatoes. Cook the turnip pieces and potatoes in boiling salted water for about 25 minutes until soft
Wash the chives and chop finely. Heat the milk in a small pot. Drain turnips and potatoes. Mash them coarsely with a potato masher. Add milk and butter and mash to a loose puree. Mix in crème fraiche and chives. Season to taste with salt and nutmeg