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purple potato salad in a serving bowl
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5 from 1 vote

French Purple Potato Salad

This easy French purple potato salad is based on Julia Child's pommes de terre à l'huile, and is made with boiled potatoes and a mustard vinaigrette.
Prep Time10 mins
Cook Time10 mins
Total Time20 mins
Course: Side Dish
Cuisine: French
Diet: Gluten Free, Vegan, Vegetarian
Servings: 4 people
Calories: 191kcal


  • 1 pound purple potatoes Do not use purple sweet potatoes
  • 2 tablespoons dry white wine Or use vegetable broth
  • 2 tablespoons white wine vinegar
  • 2 teaspoons Dijon mustard
  • ¼ teaspoon sea salt
  • 3 tablespoons olive oil
  • ¼ cup diced green onions or chives
  • torn fresh green herbs (such as basil or parsley), optional


  • Bring a large pot of heavily salted water to a boil.
    Scrub potatoes. Cut potatoes into slices about ¼-inch thick.
    Add potatoes to the boiling water, and boil until tender when pierced with a fork, about 8-10 minutes. Take care to remove them when they are just tender: if you over cook the potatoes they may fall apart in the salad.
    Sliced Purple Potatoes
  • Drain potatoes and return them to the pot (off-heat).
    Drizzle white wine over the potatoes and gently stir. Cover the pot for about 2 minutes, or until the potatoes have absorbed the wine.
    Add Wine to Cooked Potatoes
  • In a separate small bowl, whisk together the vinegar, mustard and sea salt.
    Add the oil drop by drop, whisking constantly as you pour.
    Gradually adding the oil will help emulsify the dressing, making it creamy instead of greasy. Avoid adding all the oil at once.
    Whisk the Oil into the Dressing
  • Pour dressing over the potatoes and toss gently to blend. Add the green onions or chives and toss again. Optionally, add fresh herbs.
    Serve salad warm or cold. Store leftovers in the fridge and eat within 3-4 days.
    purple potato salad in a serving bowl


This recipe is easily halved, doubled or tripled.


Calories: 191kcal | Carbohydrates: 21g | Protein: 3g | Fat: 11g | Saturated Fat: 1g | Sodium: 183mg | Potassium: 506mg | Fiber: 3g | Sugar: 1g | Vitamin A: 66IU | Vitamin C: 24mg | Calcium: 21mg | Iron: 1mg