Salads
Biaggi's cucumber onion salad recipe delivers that signature crisp, refreshing bite that makes summer salads unforgettable. This dish transforms simple ingredients—thinly sliced cucumbers, sharp red onions, and fresh herbs—into a vibrant, tangy masterpiece ready in just 10 minutes.
The secret lies in precise slicing and a bright, balanced dressing that enhances rather than overpowers the natural flavors.
The beauty of this salad is its simplicity—no cooking required, just chopping and assembling. Thinly sliced cucumbers stay crisp, while red onions add a sharp contrast that cuts through the richness of any meal.
A light dressing of olive oil, lemon juice, and a touch of salt brings everything together, creating a dish that’s both elegant and effortless. Perfect for picnics, barbecues, or as a refreshing starter.
What sets this recipe apart is the attention to presentation. Garnish with lemon zest and fresh chives for a pop of color and extra freshness. The result is a salad that’s as visually appealing as it is delicious—crisp, bright, and packed with flavor in every bite.
Whether served alongside grilled meats or as a standalone dish, it’s a crowd-pleaser that never disappoints.
This version stays true to Biaggi’s original while offering flexibility—swap in different herbs or adjust the dressing to your taste. The key is keeping everything fresh and crisp, so don’t skip the chilling step before serving. Here’s how to recreate it perfectly at home.
Ingredients for biaggi's cucumber onion salad
Thinly sliced cucumbers and sharp red onions meet bright herbs and a zesty dressing for Biaggi's iconic summer salad.
| Ingredient | Amount | Notes |
|---|---|---|
| Persian Cucumbers 🥒 | 2 whole | Thinly sliced lengthwise (1/8-inch thick) |
| Red Onions 🧅 | 1 whole | Thinly sliced (1/16-inch thick) |
| Fresh Dill 🌿 | ¼ cup | Finely chopped, stems removed |
| Fresh Chives 🌱 | 0.15 cup | Thinly sliced, for garnish |
| Extra-Virgin Olive Oil 🫒 | ⅓ cup | Light, fruity variety preferred |
| Fresh Lemon Juice 🍋 | ¼ cup | Strained, no pulp |
| Granulated Sugar 🍯 | 1 tbsp | Or honey for floral sweetness |
| Flaky Sea Salt 🧂 | 1 ½ tsp | Diamond Crystal preferred |
| Lemon Zest 🍋 | 1 tsp | Fine, for garnish |
| Ice Water 💧 | ½ cup | For crisping cucumbers |
The cucumbers are the star—Persian varieties stay crisp longer than English cucumbers. Grab them from the produce section at Whole Foods or your local farmers' market for the freshest, most flavorful slices. Thin them with a mandoline slicer (1/8-inch setting) for perfect evenness, or use a sharp chef's knife if that's what you've got. The red onions should be vibrant purple, not wilted or dry. Store them in the fridge, wrapped in a damp paper towel to keep them crisp. Fresh dill and chives? Penzeys or the bulk section at Trader Joe's always have the freshest bunches—just look for stems that aren't woody or yellowing.
No Persian cucumbers? English cucumbers work in a pinch, but they're seedier and less crisp. Swap red onions for shallots at half the amount—they're milder but still add sweetness. The dressing ratio is key: 3 parts oil to 1 part lemon juice. Too much acid? Add a pinch more sugar. Too bland? A splash more lemon. For the sugar, raw honey adds floral notes, but regular granulated works perfectly fine. The ice water bath is non-negotiable—it crisps the cucumbers instantly. Just plunge the sliced cucumbers in for 10 minutes before draining and assembling. Pro tip: Use a fine-mesh strainer to drain them thoroughly.
This salad shines when made fresh, but it keeps beautifully in the fridge for up to 2 days if stored properly. Layer the cucumbers and onions in an airtight container, then pour the dressing separately to avoid sogginess. The herbs should be added just before serving—wrap them in damp paper towels and store them in a sealed container to preserve their freshness. For maximum crispness, serve chilled. The dressing can be made 1 day ahead and stored in a sealed jar. Just give it a quick stir before using. Garnish with lemon zest and chives right before serving to keep everything vibrant.
Why You'll Love This Recipe
- No-Chop Fancy: I swear by this trick—just slice the Persian cucumbers thick and leave the skin on. The onions? Thinly sliced and soaked in ice water for 10 minutes to take the bite out. That’s it. No mandoline, no tears, just a knife and a bowl.
- Crispy-Tangy Magic: The red onions add this sharp, almost sweet bite that dances with the cucumbers’ cool crunch. Drizzle in that olive oil and fresh dill, and suddenly you’ve got a salad that tastes like a Mediterranean vacation—no passport required.
- Picnic-Proof Perfection: This keeps beautifully for days in the fridge, so it’s my go-to for potlucks, beach days, or when I forget to pack lunch. Honestly, I’ve eaten it cold, at room temp, and even tossed it with grilled chicken for dinner—still delicious every time.
- Pocketbook Hero: Persian cucumbers and fresh herbs might sound fancy, but they’re actually budget-friendly if you shop smart. A single bunch of dill and chives lasts me weeks, and the onions? You can use half a bulb for this and still have enough for sandwiches. Smart, simple, and saves money.
Step-by-step instructions for Biaggi's cucumber onion salad
Here's how to create a perfectly balanced salad with crisp cucumbers and sharp onions in just minutes.
Prepare the Cucumbers for Maximum Crispness
Cut the 2 whole Persian cucumbers in half lengthwise, then slice each half into 1/8-inch thick strips using a sharp chef's knife. Place the sliced cucumbers immediately into a large mixing bowl. Add the 0.5 cup ice water and stir gently to coat all surfaces. Let them sit for 5 minutes while you prepare the remaining ingredients.
This ice water bath prevents the cucumbers from becoming soggy while allowing them to maintain their signature crisp texture. The cold water also helps draw out any bitterness that can develop when cucumbers sit too long before eating. Don't skip this step—it's what separates a good salad from an exceptional one.
Thinly Slice and Soak the Red Onions
Cut the 1 whole red onion in half from root to stem, then carefully peel away the papery skin. Slice each half into 1/16-inch thick rings using a mandoline or your sharpest knife. Immediately place the onion slices into a separate bowl and cover them with 0.5 cup ice water (the same amount you used for cucumbers). Let them soak while you prepare the dressing.
The thin slices ensure the onion's sharp flavor is evenly distributed throughout each bite. Soaking removes some of the harshness while preserving the bright, tangy quality that pairs perfectly with cucumbers. You'll notice the onions become slightly translucent after just a few minutes—this is exactly what you want.
Make the Dressing with Perfect Balance
In a small bowl, whisk together the 0.33 cup extra-virgin olive oil, 0.25 cup fresh lemon juice, 1 tbsp granulated sugar, 1.5 tsp flaky sea salt, and 1 tsp lemon zest until completely combined. The mixture should be smooth with no visible sugar granules. Taste and adjust seasoning if needed—this is your flavor foundation.
Using a light, fruity olive oil enhances the salad's brightness, while the lemon juice and zest provide the necessary acidity to cut through the richness. The sugar isn't just for sweetness—it helps balance the salt and creates a subtle caramelization when the dressing sits with the vegetables. This dressing should coat the back of a spoon with a silky texture.
Combine and Chill for Optimal Texture
Drain both the cucumbers and onions thoroughly using a fine-mesh strainer, shaking gently to remove excess water. Add them to the bowl with the dressing and toss gently but thoroughly to ensure even coating. Fold in the 0.25 cup finely chopped fresh dill and 0.15 cup thinly sliced fresh chives, reserving a small amount of each for garnish.
Transfer the salad to a serving dish and refrigerate for at least 30 minutes before serving. This chilling time allows the flavors to meld while maintaining the vegetables' crisp texture. The salad will taste even better the next day as the flavors continue to develop, but serve it within 24 hours for best quality.
Garnish and Serve Immediately
Before serving, sprinkle the reserved thinly sliced fresh chives and fine lemon zest over the top. Toss gently just before serving to maintain the vegetables' crispness. The salad should be vibrant with bright green dill, purple onion rings, and pale green cucumber slices all coated in a glossy dressing.
Serve immediately while the vegetables are at their peak texture. Each bite should deliver a perfect balance of crisp cucumbers, sharp onions, fresh herbs, and the bright lemon-olive oil dressing. This salad pairs beautifully with grilled meats, fish, or simply on its own as a refreshing starter.
Pro Tips For Making Biaggi'S Cucumber Onion Salad
- SOAK ONIONS 15 MINUTES: I learned this the hard way—skipping the soak makes the red onions taste harsh no matter how thin you slice them. Toss the sliced onions in cold water with a pinch of salt for 15 minutes, then drain. The acidity in the water mellows the bite, and you’ll taste the sweetness Biaggi highlights.
- SLICE CUCUMBERS THICK: Thin slices turn soggy fast, and this salad’s texture relies on that crisp bite. Cut Persian cucumbers into ¼-inch thick half-moons—thick enough to hold shape but still delicate. No mandoline? A sharp chef’s knife works just as well if you’re steady.
- DRIZZLE OIL LAST: The olive oil is the star, but adding it too soon makes the onions limp. Toss everything else together, let it sit for 5 minutes, then finish with a generous stream of high-quality EVOO. The herbs will bloom, and the oil will cling to the cucumbers instead of pooling at the bottom.
- CHOP CHIVES COARSELY: I used to mince them into oblivion, thinking finer meant better. Biaggi’s version relies on bright, visible strands—chop chives into ½-inch pieces so they add texture without disappearing. Same goes for the dill: tear it roughly, not chopped.
Perfect pairings for biaggi's cucumber onion salad
Grilled Protein Pairings
This salad’s bright, crisp profile makes it the perfect foil for grilled proteins. I love serving it alongside grilled shrimp skewers—the sweetness of the shrimp contrasts beautifully with the salad’s sharp onion and tangy dressing.
For a heartier option, pair it with seared lemon-herb chicken breast or charred flank steak. The key is to grill the protein just before serving so it stays hot and juicy while the salad maintains its crispness. 🔥
Seafood Harmony
Seafood lovers will adore this salad with grilled salmon or seared scallops. The richness of the fish complements the salad’s fresh, bright flavors without overpowering them. For a Mediterranean twist, serve it with grilled octopus drizzled with olive oil and lemon.
The salad’s acidity cuts through the seafood’s natural oils, creating a perfect balance. I often add a sprinkle of fresh parsley to the seafood for an extra herbaceous touch.
Cheese Board Companion
Transform this salad into a cheese board centerpiece by pairing it with aged cheddar, goat cheese, and fresh mozzarella. The sharpness of the red onions and the tang of the dressing elevate the cheese flavors, while the cucumbers add a refreshing crunch.
Add crusty baguette slices and a few olive oil-dipped breadsticks for a complete charcuterie experience. This combo is perfect for summer gatherings or holiday parties.
Beverage Pairings
For drinks, I recommend a crisp Sauvignon Blanc with its citrus notes to match the lemon dressing. A rosé from Provence also works beautifully, especially on warm days. If you prefer beer, try a wheat beer like Blue Moon or a light pilsner to complement the salad’s freshness.
For a non-alcoholic option, a sparkling lemonade with mint garnish keeps things refreshing and vibrant. 🍷
Breakfast or Brunch
Don’t limit this salad to dinner—it’s a fantastic addition to brunch! Serve it alongside fluffy scrambled eggs or smoked salmon bagels for a light yet satisfying meal. The salad’s crispness balances the richness of eggs or smoked fish, making it a crowd-pleaser.
For a sweet contrast, pair it with fresh berries or yogurt parfaits. This combo is especially great for weekend brunches or lazy Sunday mornings.
Nutrition facts
Frequently asked questions
Why soak the cucumbers and onions in ice water?
The ice water bath is the secret to keeping this salad perfectly crisp! Thinly sliced cucumbers and onions release moisture quickly, which can make them soggy. The cold water shock stops this process while drawing out any bitterness. For best results, soak for exactly 5 minutes—no longer or they'll absorb too much water and lose their crunch.
Can I make this salad ahead of time?
Store the dressed salad in an airtight container in the fridge for up to 2 days, but keep the herbs separate until serving. The dressing can be made 1 day ahead and stored separately. Just give it a quick stir before tossing with the veggies—this maintains the perfect texture and prevents wilting.
What if I don't have Persian cucumbers?
English cucumbers work in a pinch, but they'll be seedier and slightly less crisp. For better results, use seedless mini cucumbers or kirby cucumbers if available. The key is to slice them as thinly as possible (1/8-inch) and soak them immediately in ice water to maximize crispness.
How do I adjust the dressing for different tastes?
The dressing ratio is flexible! For more tang, add 1 extra tablespoon lemon juice. Prefer it sweeter? Increase the sugar to 1.5 tablespoons. For a richer flavor, swap 2 tablespoons olive oil for avocado oil. Always taste as you go—this salad's magic comes from balancing the sharp, sweet, and bright flavors.
Can I make this salad without fresh herbs?
While fresh dill and chives add incredible flavor, you can substitute with 1 tablespoon dried dill (reduce to half the amount) or 1 teaspoon dried chives. For extra freshness, try adding 1 tablespoon chopped parsley or 1/4 teaspoon dried tarragon. The herbs are optional but make a noticeable difference in aroma and taste!