This green bean potato salad combines creamy Yukon Gold potatoes with crisp-tender beans, red onion, parsley, dill and capers. A Dijon-red wine vinaigrette replaces mayonnaise, so the salad tastes bright and can be served cool rather than refrigerator-cold.
The vegetables share one pot but do not cook together. Potatoes begin in cold salted water for even centers, then green beans blanch in the reheated water and move into an ice bath. Warm potatoes absorb half the dressing while dry chilled beans keep their snap.
This recipe was developed through culinary research and editorial review. Potato size, bean thickness and stove output vary, so use the knife, bend and bite cues below.
For a bean-only side, use the green bean salad recipe. The black bean corn salad recipe is a no-cook option for warm-weather meals.
Why potatoes and green beans should cook separately
Potatoes need gentle simmering long enough for their centers to become creamy. Green beans need a short, active boil and rapid chilling. Putting both in the pot together guarantees that one will be wrong.
Starting potatoes in cold water lets the outside and center heat at a similar rate. Once they are tender, lift them out rather than dumping away the cooking water. Bring that water back to a boil and blanch the beans for only a few minutes.
The separate finishing matters too. Warm potatoes take in vinaigrette; wet beans repel it. Dress potatoes first, dry the beans and combine only after the potatoes stop steaming.
Ingredients
For the salad
- 2 pounds baby Yukon Gold potatoes, halved into 1 1/2-inch pieces, 900 grams
- 1 tablespoon kosher salt, for the cooking water
- 1 pound fresh green beans, trimmed and cut into 2-inch pieces, 454 grams
- 1/2 cup thinly sliced red onion, 70 grams
- 1/2 cup chopped flat-leaf parsley, 20 grams
- 1/4 cup chopped fresh dill, 10 grams
- 2 tablespoons drained capers, 18 grams
For the herb vinaigrette
- 3 tablespoons red wine vinegar, 45 grams
- 1 tablespoon fresh lemon juice, 15 grams
- 1 tablespoon Dijon mustard, 15 grams
- 1 small garlic clove, finely grated
- 1 teaspoon honey or maple syrup, 7 grams
- 1/2 cup extra-virgin olive oil, 108 grams
- 3/4 teaspoon fine salt, plus more after tasting
- 1/2 teaspoon black pepper
Ingredient notes and substitutions
Potatoes: Baby Yukon Golds hold their shape while developing creamy centers. Red potatoes work. Russets are too floury and tend to break during tossing.
Green beans: Select beans of similar thickness. Thin haricots verts cook faster, so begin checking around 2 minutes.
Red onion: Thin slices soften in the warm potato dressing. For a milder flavor, soak them in cold water 10 minutes and blot before using.
Parsley and dill: Parsley brings freshness; dill gives the salad its distinctive flavor. All parsley is an option, while all dill can dominate.
Capers: Capers add briny bursts. Chopped cornichons can substitute; reduce initial salt because pickles vary.
Red wine vinegar: Apple cider or champagne vinegar works. Begin with the same measure and adjust after the salad rests.
Olive oil: A fruity but not intensely bitter oil suits warm potatoes. If your oil is very peppery, replace half with a neutral oil.
How to make green bean potato salad
1. Build an ice bath
Fill a large bowl halfway with ice and cold water. Set a colander and two clean towels nearby for the beans.
2. Start potatoes in cold water
Place halved potatoes in a large pot and cover with cold water by 1 inch. Add 1 tablespoon kosher salt. Bring to a boil, then lower to a steady simmer.
3. Simmer until just tender
Cook 12 to 18 minutes, depending on size. Begin checking at 10 minutes. A thin knife should slide into the center with slight resistance, and the potato should stay on the knife rather than falling apart.
4. Lift potatoes from the pot
Use a spider or slotted spoon to move potatoes into a large mixing bowl. Keep the cooking water in the pot and return it to a full boil.
5. Whisk the vinaigrette
While potatoes simmer, whisk vinegar, lemon, Dijon, garlic, honey, fine salt and pepper. Stream in olive oil until cohesive.
6. Dress warm potatoes
Pour half the vinaigrette over the hot potatoes and add red onion. Fold carefully, then leave uncovered for 15 minutes. The potatoes should stop steaming before beans are added.
7. Blanch green beans
Add beans to the reboiled potato water. Begin checking at 3 minutes; cook 3 to 5 minutes until bright, slightly flexible and crisp without a raw center.
8. Shock and dry beans
Transfer beans directly to the ice bath for 2 minutes. Drain, spread over towels and blot thoroughly.
9. Combine
Add dry beans, parsley, dill, capers and remaining vinaigrette to the warm—not hot—potatoes. Fold gently with a broad spatula.
10. Rest and adjust
Rest for 20 minutes or refrigerate. Taste potato and bean together, then add vinegar by the teaspoon or salt by a pinch.
Potato and green bean timing guide
| Ingredient | First check | Correct cue | Stop cooking when |
|---|---|---|---|
| 1 1/2-inch Yukon Gold pieces | 10 minutes | Knife enters with slight resistance | Piece stays intact on knife |
| Smaller potato halves | 8 minutes | Center is creamy, edge firm | Skin has not split widely |
| Standard green beans | 3 minutes | Bright and crisp without raw center | Bean bends and snaps lightly |
| Thin haricots verts | 2 minutes | Flexible but crisp | Color is vivid and surface smooth |
| Potatoes before combining | 15-minute cool | Warm, no visible steam | Ready for cold beans |
How warm potatoes absorb dressing
Hot potato starch takes in flavorful liquid as it cools. Pouring half the vinaigrette over the potatoes immediately seasons more than their surface.
Use only half at first. The remaining dressing coats green beans and herbs later. If all of it goes onto steaming potatoes, the beans may taste plain and the herbs may wilt.
Let potatoes cool uncovered for 15 minutes. They should remain warm enough for good flavor but not hot enough to continue cooking the chilled beans.
Avoiding broken potatoes
Cut pieces evenly and simmer rather than boil hard. Turbulent water knocks potatoes together, while overcooking weakens the outer layer.
Use a spider or slotted spoon to lift them. Dumping a heavy pot into a colander can crush the bottom pieces and wastes the hot water needed for beans.
Fold with a broad spatula from the bottom. A narrow spoon slices through potato edges, especially while warm.
Make-ahead plan
The vinaigrette can be made up to 3 days ahead. Refrigerate it and let it stand for 10 minutes before whisking because olive oil thickens when cold.
The complete salad may be assembled one day ahead. Hold back half the herbs and 2 tablespoons vinaigrette; fold them in before serving to refresh color and flavor.
For a picnic, transport in a covered chilled container with a cold source. A vinaigrette-based salad still requires refrigeration.
Variations
Mustard-forward: Increase Dijon to 2 tablespoons and reduce olive oil by 1 tablespoon.
Feta: Add 3/4 cup crumbled feta at serving and reduce initial salt to 1/2 teaspoon. This adds a milk allergen.
Egg: Add four quartered hard-cooked eggs for a fuller lunch. This adds an egg allergen.
No capers: Use 1/3 cup finely chopped dill pickles or omit and add another teaspoon vinegar.
Basil lemon: Replace dill with basil and use lemon juice in place of half the vinegar.
Roasted version: Roast potatoes rather than simmering, but blanch the beans separately. The result is firmer and less traditional.
Troubleshooting
The potatoes are falling apart
They were cut small, boiled hard or cooked too long. Use waxy potatoes, a steady simmer and the slight-resistance knife cue.
The potato centers are hard
Pieces were uneven or cooking stopped early. Return undressed potatoes to simmering water for 2 minutes and recheck.
The green beans are limp
They stayed in boiling water too long or were not chilled promptly. Begin tasting at 3 minutes and have the ice bath ready.
The dressing is watery
Beans were wet. Drain after the ice bath, spread over towels and blot before combining.
The potatoes taste bland
They cooled before receiving dressing. Dress them while hot and adjust final salt only after 20 minutes.
The herbs turned dark
Potatoes were still steaming. Cool them for 15 minutes and add herbs with the chilled beans.
Storage and serving
Store the salad in a covered refrigerator container for up to 3 days. Keep it at 40°F or below and refrigerate within 2 hours of serving.
Serve cold, cool or after 15 minutes at room temperature. The olive oil and potato texture are most pleasant when the salad is not ice-cold.
FDA recommends washing fresh beans and herbs under running water rather than using soap; see its produce-safety guidance.
Freezing is not recommended. Potatoes can become grainy and beans soften after thawing. Reheating is possible but turns this into a warm side and diminishes the fresh herbs; the recipe is designed for cold serving.
Frequently asked questions
Can I cook potatoes and green beans in the same pot?
Yes, sequentially. Cook and remove potatoes first, return the water to a boil, then blanch the beans.
What potatoes are best for this salad?
Baby Yukon Gold or red potatoes hold their shape and have creamy centers. Avoid floury russets.
How long do green beans cook?
Standard beans usually need 3 to 5 minutes in boiling water. Begin checking at 3 minutes.
Can I make the salad the night before?
Yes. Reserve some herbs and vinaigrette to refresh it before serving.
Is this potato salad mayonnaise-free?
Yes. It uses an olive-oil, vinegar and Dijon dressing.
Can I serve it warm?
Serve it warm-cool after combining, but do not add chilled beans to steaming potatoes.
Can I freeze it?
Freezing is not recommended because potato and bean textures decline.
Recipe development note
This green bean potato salad was developed through culinary research and editorial review. It is not represented as a personal kitchen test. Potato size, bean thickness and stove output vary; use the knife, bend and bite cues.
Nutrition is an estimate per one of eight servings. The accompanying visuals are AI-assisted food-editorial images, not photographs of a kitchen test.
Printable recipe card
Herby Green Bean Potato Salad Recipe with Vinaigrette
Ingredients
Equipment
Method
- Fill a large bowl halfway with ice and cold water; set a colander and clean towels nearby.
- Cover potato pieces with cold water by 1 inch, add kosher salt, bring to a boil and lower to a steady simmer.
- Simmer 12 to 18 minutes, checking at 10, until a thin knife enters with slight resistance and pieces stay intact.
- Lift potatoes into a mixing bowl, keep cooking water and return it to a full boil.
- Whisk vinegar, lemon, Dijon, garlic, honey, fine salt and pepper, then stream in olive oil.
- Pour half the vinaigrette over hot potatoes, add onion, fold gently and cool uncovered 15 minutes.
- Boil green beans 3 to 5 minutes, beginning checks at 3, until crisp-tender without a raw center.
- Move beans to ice water for 2 minutes, drain and blot thoroughly on towels.
- Fold dry beans, herbs, capers and remaining vinaigrette into warm, non-steaming potatoes.
- Rest 20 minutes, taste potato and bean together, then adjust vinegar by the teaspoon or salt by a pinch.
Notes
- Start potatoes in cold salted water.
- Remove when a knife meets slight resistance.
- Dress potatoes while hot and cool 15 minutes.
- Blanch beans separately in the reboiled water.
- Shock and dry beans before combining.
- Refrigerate up to 3 days.
- Dijon may contain sulfites depending on brand.
- This recipe was developed through culinary research and editorial review.
This recipe was developed through culinary research and editorial review. Potato size, bean thickness and stove output vary; use the knife, bend and bite cues.
Nutrition is an estimate per one of eight servings.