Instructions

  1. Make oil:.
  2. Purée chives and parsley with oil and salt in a blender until smooth. Pour herb oil through a fine strainer into a glass cup, pressing on and discarding solids.
  3. Prepare potatoes:.
  4. Peel and quarter potatoes. Cover potatoes with salted cold water by 1 inch in a 5-quart heavy pot, then simmer, uncovered, until very tender, about 25 minutes.
  5. While potatoes are simmering, bring milk, butter, salt, and pepper to a simmer, stirring until butter is melted.
  6. Drain potatoes in a colander and return to pot. Add the hot milk mixture and mash with a potato masher until almost smooth, then stir in 4 tablespoons of the herb oil.
  7. If desired, serve potatoes drizzled with some of remaining oil. Enjoy!
  8. Note:.
  9. Oil can be made 4 days ahead and covered and chilled. Bring to room temperature before using.
  10. Potatoes can be made 1 day ahead and chilled, covered. Bring to room temperature before reheating in a microwave or double boiler, stirring occasionally.