This is not a mayonnaise-heavy potato salad. It’s a French-style potato and green bean salad with a mustard vinaigrette that clings, not drowns. The potatoes stay firm, the beans snap, and the hard-boiled eggs add richness without weighing things down.
Capers and dry-cured olives bring briny pops that make each forkful interesting. The trick is timing: you add the green beans to the pot near the end, so everything finishes together. Then you shock them just enough to stop cooking but leave the potatoes warm enough to drink in the dressing.
That brief rest before serving is where the salad comes together, the flavors concentrate, the texture stays bright. This is a salad that works as a side or a light main, and it’s forgiving enough that you can swap in asparagus or snap peas if you like.
New potatoes hold shape
Waxy new potatoes have thin skins and low starch, so they stay firm after boiling. Their creamy texture contrasts with crisp green beans and tender eggs. Halving larger potatoes ensures even cooking and better dressing absorption without turning mushy.
Vinaigrette clings, not drowns
Dijon mustard acts as an emulsifier, creating a stable, creamy dressing that clings to the potatoes and beans. Acid from lemon and vinegar brightens the earthy vegetables.
Garlic adds pungency that balances the briny capers and olives. The result is a cohesive salad where each bite is seasoned, not drenched.
Eggs add richness and contrast
Quartered hard-boiled eggs distribute evenly and maintain their shape during gentle tossing. The yolks add a creamy, savory element that complements the vinaigrette. Eggs are added after the dressing to avoid absorbing too much liquid, so they stay distinct.
Resting deepens the flavor
Letting the salad sit for 10 minutes before serving allows the vinaigrette to penetrate the warm potatoes for deeper flavor. The brief rest prevents overdressing, as excess liquid gets absorbed. Serving at room temperature enhances the taste of olive oil and fresh herbs, making the salad taste more cohesive.
Prep: 15 min · Cook: 30 min · Total: 45 min · Servings: 4 · Calories: 350 kcal
What to buy and how to prep
New potatoes: Waxy new potatoes hold their shape after boiling; skip starchy russets that fall apart.
Green beans: Look for thin, bright green beans that snap when bent; thick or limp ones are past prime.
Capers: Buy salt-packed capers if you can; rinse them well. Brined capers work, but they’re tangier.
Dry-cured olives: Dry-cured olives have a concentrated, meaty flavor; brine-cured olives will taste milder.
Hard-boiled eggs: Use eggs that are at least a week old; they peel more cleanly than super fresh ones.
Boil vegetables separately, then combine
Cook the potatoes
Drop halved new potatoes into boiling salted water. Simmer until a knife slides in with slight resistance, 15 to 20 minutes. Stop before they flake apart.
Blanch the beans
Add green beans to the pot 5 minutes before the potatoes are done. The beans turn bright green and stay snappy. Once tender-crisp, drain everything.
Shock and drain
Rinse the vegetables under cold water until the potatoes are just warm, not hot. This stops cooking and sets the color. Drain well; excess water thins the dressing.
Make the vinaigrette
Whisk olive oil, lemon juice, vinegar, garlic, and mustard until creamy and emulsified. You should see a thick, opaque dressing that clings to the whisk.
Assemble the salad
Toss the warm potatoes and green beans with the vinaigrette. Fold gently so the dressing coats every piece without breaking the vegetables. Then add quartered eggs, capers, and olives.
Rest before serving
Let the salad sit for 10 minutes. The warm potatoes absorb the vinaigrette, so the salad looks drier but tastes more seasoned. If it pools liquid, you over-dressed.
Finish with herbs
Scatter fresh parsley and basil over the top. Add salt and pepper to taste. The herbs add a bright, fresh finish that contrasts the briny olives and capers.
French-Style Potato and Green Bean Salad
Ingredients
- 1 lb 2 oz new potatoes 500 g
- 10.6 oz green beans 300 g
- 4 large hard-boiled eggs
- 6 tbsp olive oil 90 ml
- 2 tbsp lemon juice 30 ml
- 1 tbsp white wine vinegar 15 ml
- 1 clove garlic, minced
- 1 tbsp Dijon mustard
- 2 tbsp chopped capers
- 2 tbsp dry-cured olives
- Salt to taste
- Freshly ground black pepper to taste
- A handful fresh herbs (parsley, basil)
Instructions
Boil Potatoes:
Boil the potatoes: Wash potatoes, halve any large ones, and simmer in salted water for 15-20 minutes until fork-tender.Add Green Beans:
Add the green beans: 5 minutes before potatoes are done, toss in green beans; then drain everything and refresh under cold water.Hard-Boil Eggs:
Hard-boil the eggs: Submerge eggs in water, bring to a boil, and cook for 9-12 minutes; transfer to an ice bath.Whisk Dressing:
Prepare the dressing: In a bowl, whisk olive oil, lemon juice, white wine vinegar, minced garlic, and Dijon mustard until emulsified.Combine Salad Ingredients:
Assemble: In a large mixing bowl, combine potatoes, green beans, and quartered eggs; fold in capers and olives gently.Drizzle Vinaigrette:
Add the dressing: Drizzle the vinaigrette over the salad, toss lightly, and allow to rest for 10 minutes.Garnish with Herbs:
Garnish: Scatter fresh herbs over top and season with salt and pepper as desired.
Storage and Serving
This salad is best served within an hour of assembling, while the potatoes are still slightly warm and the herbs are bright. If making ahead, cook and dress the potatoes and beans, then refrigerate.
Add eggs, capers, olives, and herbs just before serving. Leftovers keep in a covered container in the fridge for up to 2 days. The potatoes will absorb more dressing and soften, and the green beans lose their snap.
To revive, let the salad sit at room temperature for 15 minutes and toss with a splash of lemon juice or vinegar. Do not freeze the assembled salad; the eggs and vegetables will become watery and texturally unpleasant when thawed.
Tips
- If your potatoes are very small (under 1 inch), leave them whole; halving would make them too small and they could overcook.
- When refreshing the potatoes and beans under cold water, stop once the potatoes are just warm to the touch; if they cool completely, they won’t absorb the vinaigrette as well.
Swap green beans for asparagus or snap peas, but keep the potatoes
Green beans: Asparagus (trimmed, cut into 2-inch pieces) or sugar snap peas (trimmed). Asparagus gives a similar tender-crisp bite with a grassier flavor; snap peas add sweetness and crunch. Blanch both the same way as the beans, drop into the pot 5 minutes before the potatoes finish.
Capers: Chopped dill pickles or cornichons. You lose the briny pop of capers but gain a tangy crunch. Start with half the amount capers and add more to taste, pickles can be more acidic.
Dry-cured olives: Sun-dried tomatoes (oil-packed, drained and chopped) or Kalamata olives (pitted). Sun-dried tomatoes swap the salty, meaty olive flavor for a sweet-tart intensity.
Kalamatas are milder but still briny; they make the salad less concentrated. Use the same volume as olives.
Hard-boiled eggs: No swap, eggs provide richness and structure that nothing else can replace without turning the salad into a different dish.
I still set a timer when I toss the beans in, even though it feels fussy, it keeps them bright and crisp.
Frequently Asked Questions
Can I make this salad ahead of time?
You can cook and dress the potatoes and beans up to a day ahead, but add the eggs, capers, olives, and herbs just before serving. After a day in the fridge, the potatoes absorb more dressing and soften, to revive, let the salad sit at room temperature for 15 minutes and add a splash of lemon juice or vinegar.
How do I prevent the green beans from turning mushy?
Blanch the green beans only for the last 5 minutes of the potato cooking time, then shock them under cold water until they’re just warm. The beans should snap when bent and stay bright green. If they’re limp or olive-colored, you cooked them too long or didn’t shock them enough.
What’s the difference between this French-style salad and a classic potato salad?
This salad uses a mustard vinaigrette instead of a mayonnaise base, so it’s lighter and more acidic. The green beans add a fresh, snappy texture that contrasts the creamy potatoes, while capers and olives bring briny pops. Classic potato salad is typically creamy and uniform; this one is brighter and more vegetable-forward.
