Ingredients
Instructions
- In a large pot of boiling, salted water, cook the parsnips and potatoes until tender, 25 to 30 minutes. Drain, reserving 1/2 cup cooking water. Return the vegetables to the pot. Add the milk, sour cream and 4 tablespoons butter.
- Using a food processor and working in batches, puree the parsnip mixture, adding the reserved cooking water to thin the consistency as desired; season with salt. Serve with the remaining tablespoon butter melted on top.