Preparation In heavy large pot combine parsnips with enough cold water to cover. Place over moderately high heat, cover, and bring to a boil. Continue boiling until tender, about 30 to 45 minutes. Drain. Working in 2 batches, pureé hot parsnips, butter, and chicken stock until smooth. Transfer to large serving dish, stir in salt and pepper, and serve immediately.
Preparation In heavy large pot combine parsnips with enough cold water to cover. Place over moderately high heat, cover, and bring to a boil. Continue boiling until tender, about 30 to 45 minutes. Drain. Working in 2 batches, pureé hot parsnips, butter, and chicken stock until smooth. Transfer to large serving dish, stir in salt and pepper, and serve immediately.