Follow these straightforward steps to create the perfect Classic French-Style Potato Salad:

1. Prepare Potatoes: Begin by washing the new potatoes. Leave the skins intact for added texture and nutrients.
2. Cook Potatoes: Place the potatoes in a large pot of salted water. Bring to a boil and cook for 15-20 minutes or until fork-tender.
3. Cook Green Beans: In the last 5 minutes of the potatoes' cooking time, add the green beans to the pot. This ensures they maintain their crunch.
4. Drain and Cool: Once cooked, drain the potatoes and green beans. Allow them to cool slightly before handling.
5. Make Dressing: In a separate bowl, whisk together Dijon mustard, white wine vinegar, olive oil, salt, and pepper. Adjust seasoning to taste.
6. Combine Ingredients: Cut the slightly cooled potatoes into bite-sized pieces. In a large mixing bowl, combine potatoes, green beans, chopped red onion, parsley, and chives.
7. Mix in Dressing: Pour the dressing over the potato mix. Toss gently until everything is evenly coated.
8. Add Eggs: If desired, fold in the chopped hard-boiled eggs for extra creaminess.
9. Chill or Serve: Allow the salad to chill in the refrigerator for at least 10 minutes before serving, or serve warm if you prefer.

By following these instructions, you will achieve a wonderful classic dish that’s sure to impress family and friends.