Creamy Dill Cucumber Salad: Best Summer Side

There used to be a tiny deli tucked between a dry cleaner and a shoe repair shop on the corner of Elm and 4th that made the most incredible creamy dill cucumber salad. When they closed suddenly three summers ago—a “for lease” sign appeared overnight, like a bad breakup—I honestly felt a little lost. That tangy, herb-flecked bowl of crunch was my go-to side for every barbecue, every lazy Sunday, every time I needed something cold and satisfying. After twelve tries—some too watery, some too sour, one that tasted suspiciously like pickle juice—I finally cracked the code. Last Tuesday, I took a bite of my latest batch and actually teared up a little. It was that exact same creamy dill cucumber salad I’d been chasing for years.

You know that feeling when a recipe just clicks? When the balance of tangy sour cream, fresh dill, and paper-thin red onion hits every single note perfectly? That’s this salad. It’s not complicated—it’s barely even cooking—but it demands respect. Get the proportions wrong and you’ve got a sad, watery mess. Get them right, and you’ve got the best summer side dish that will disappear before the burgers are even off the grill. I nearly gave up after batch number seven (I forgot to salt the cucumbers first, and let me tell you, that was a soggy disaster), but I’m stubborn that way. This creamy dill cucumber salad is the reason I keep a mandoline in my drawer and dill in my fridge year-round. It’s just that good.

Why You’ll Love This Recipe

This isn’t just another cucumber salad recipe floating around the internet. I’ve tested this version more times than I care to admit, tweaking the cream-to-sour-cream ratio, the amount of dill, the thickness of the onion slices. What I landed on is the Goldilocks of cucumber salads—everything is just right. Here is why this one is different.

• Quick & Easy: From fridge to table in under 20 minutes. No cooking, no fuss, just slicing and stirring.
• Simple Ingredients: Cucumbers, red onion, sour cream, mayo, dill, vinegar, salt, pepper. That’s it. You probably have most of these in your kitchen right now.
• Perfect for Summer: This creamy dill cucumber salad is the ultimate side for grilled meats, fish, or anything coming off the barbecue. It’s cold, crisp, and cuts through rich flavors beautifully.
• Crowd-Pleaser: I brought this to a neighborhood potluck last month and three people asked for the recipe before the hot dogs were even served. Kids love it, adults devour it.
• Unbelievably Delicious: The texture is what gets me every time. Thin, crisp cucumber slices coated in a creamy, tangy dressing with pops of fresh dill and sharp red onion. It’s simple comfort food at its absolute best.

What makes this version stand out? It’s the salting step. I know, I know—it feels like an extra chore. But salting the cucumbers and letting them sit draws out excess moisture so your dressing doesn’t turn into a pool of watery sadness by the second day. This salad stays creamy and crisp for up to 48 hours, which is practically unheard of for cucumber salads. Trust me on this one.

What Ingredients You Will Need

This creamy dill cucumber salad uses humble, everyday ingredients that come together to create something genuinely special. Most of these are pantry staples or easy to find at any grocery store. Here is what you will need.

• English cucumbers (2 large, about 1.5 pounds total) – I prefer English cucumbers here because they have thin, tender skins and fewer seeds. Regular garden cucumbers work too, but you will want to peel them first and scoop out the seeds to avoid bitterness. Look for firm, dark green cucumbers without any soft spots.
• Red onion (1 medium) – Thinly sliced, almost translucent. Red onion adds a beautiful color and a mild sharpness that mellows as it sits in the dressing. If you are sensitive to raw onion, soak the slices in ice water for 10 minutes before adding them to the salad.
• Sour cream (1/2 cup) – This is the backbone of the creamy dressing. I use full-fat sour cream for richness, but light sour cream works in a pinch. For a tangier version, try using Greek yogurt instead.
• Mayonnaise (1/4 cup) – Adds creaminess and a touch of richness that sour cream alone can’t provide. I recommend Duke’s or Hellmann’s for best flavor. If you are dairy-free, use a vegan mayo and dairy-free sour cream.
• Fresh dill (3 tablespoons, finely chopped) – Fresh dill is non-negotiable here. Dried dill simply won’t give you the same bright, herbaceous flavor. I grow dill in my garden every summer just for this salad. If you must substitute, use fresh parsley or chives, but the flavor will be different.
• White wine vinegar (2 tablespoons) – Provides the tang that balances the creamy base. Apple cider vinegar or champagne vinegar work beautifully as substitutes. Avoid distilled white vinegar—it is too harsh.
• Granulated sugar (1 teaspoon) – Just a pinch to balance the acidity. It doesn’t make the salad sweet; it rounds out the sharp edges of the vinegar and onion.
• Salt (1 teaspoon for salting cucumbers, plus 1/2 teaspoon for dressing) – Kosher salt is best. The initial salting draws moisture out of the cucumbers, which is the secret to a non-watery salad.
• Black pepper (1/4 teaspoon, freshly ground) – Adds a subtle warmth. Freshly ground makes a difference here.

Equipment Needed

The beauty of this creamy dill cucumber salad is that it doesn’t require fancy equipment. Here is what you will need.

• Sharp knife or mandoline slicer – A mandoline makes quick work of slicing cucumbers and onions paper-thin, which gives the salad its delicate texture. If you don’t have one, a sharp chef’s knife and a steady hand work perfectly fine. I have cut myself exactly once on a mandoline, so please use the guard.
• Large mixing bowl – For salting the cucumbers and combining the salad.
• Small bowl – For whisking the dressing ingredients together.
• Colander – To drain the salted cucumbers. A fine-mesh strainer works too.
• Clean kitchen towel or paper towels – To pat the cucumbers dry after salting. This step is crucial for removing excess moisture.
• Whisk – For combining the dressing until smooth.
• Measuring spoons and cups – Precision matters with the dressing ratios.

If you are on a budget, skip the mandoline and just use your sharpest knife. The salad will taste just as good, I promise.

Preparation Method

Follow these steps carefully, and you will end up with the best creamy dill cucumber salad you have ever made. I have included time estimates and sensory cues so you know exactly what to look for at each stage.

1. Wash and slice the cucumbers (5 minutes). Rinse the English cucumbers under cool water and pat them dry. Trim off the ends. Using a mandoline or sharp knife, slice the cucumbers into thin rounds, about 1/8-inch thick. You want them thin enough to curl slightly but thick enough to hold their crunch. If you are using a knife, aim for uniform slices—this helps them salt evenly.
2. Salt the cucumbers (15 minutes resting time). Place the cucumber slices in a large mixing bowl and sprinkle with 1 teaspoon of kosher salt. Toss well to coat every slice. Let them sit at room temperature for 15 minutes. You will notice liquid pooling at the bottom of the bowl—this is exactly what you want. The salt draws out excess water so your dressing stays thick and creamy.
3. Prepare the red onion (5 minutes). While the cucumbers are resting, peel the red onion and slice it as thinly as possible. I like to use the mandoline for this too. If the onion tastes too sharp for your liking, place the slices in a small bowl of ice water for 10 minutes, then drain and pat dry. This mellows the bite significantly.
4. Make the dressing (5 minutes). In a small bowl, whisk together the sour cream, mayonnaise, white wine vinegar, sugar, remaining 1/2 teaspoon salt, and black pepper until smooth and creamy. Taste it. It should be tangy, slightly sweet, and well-seasoned. Stir in the chopped fresh dill. The dressing will look slightly thick—that is perfect.
5. Drain and dry the cucumbers (2 minutes). After 15 minutes, transfer the salted cucumber slices to a colander and rinse them briefly under cold water to remove excess salt. Shake off the water, then transfer them to a clean kitchen towel or a layer of paper towels. Pat them gently but thoroughly dry. This step cannot be skipped—it is what keeps your salad from becoming watery.
6. Combine everything (3 minutes). Return the dried cucumber slices to the large mixing bowl. Add the sliced red onion. Pour the dressing over the top and toss gently until every slice is coated. Use a rubber spatula or large spoon to fold the dressing through without breaking the cucumber slices.
7. Chill and rest (30 minutes minimum, optional but recommended). Cover the bowl with plastic wrap or a lid and refrigerate for at least 30 minutes before serving. This resting time allows the flavors to meld and the onion to soften slightly. The salad tastes even better the next day—if it lasts that long.
8. Final taste and serve (2 minutes). Before serving, give the salad a stir and taste it. Adjust seasoning with a pinch more salt or a splash of vinegar if needed. Garnish with a few extra sprigs of fresh dill for a pretty presentation.

Cooking Tips & Techniques

After making this creamy dill cucumber salad more times than I can count, I have learned a few things the hard way. Let me save you the trouble.

Do not skip the salting step. I know it feels like an extra 15 minutes you don’t have, but it is the single most important technique in this recipe. Without it, your dressing will separate and pool at the bottom of the bowl within an hour. I learned this lesson after bringing a soggy, watery salad to a Fourth of July party. Never again.

Slice everything uniformly. Uneven slices mean some pieces will be salty and some will be bland. Take your time with the knife or mandoline. Consistent thickness ensures every bite has the same perfect balance of crunch, cream, and herb.

Pat the cucumbers bone-dry. After rinsing off the salt, really press those paper towels into the slices. I usually do two rounds of patting just to be safe. Any residual water will dilute your dressing and make the salad weepy within hours.

Let it rest in the fridge. This salad needs at least 30 minutes to come together. The flavors marry, the onion mellows, and the dill infuses the cream. I once served it immediately and it was good. I served it after an hour and it was incredible. Patience pays off.

Use fresh dill, not dried. I cannot stress this enough. Dried dill tastes like hay and has none of the bright, grassy notes that make this salad sing. If fresh dill isn’t available, use fresh parsley or chives instead. Or just wait until you can get your hands on fresh dill—it is worth the trip to another store.

Variations & Adaptations

This creamy dill cucumber salad is wonderfully adaptable. Here are some variations I have tried and loved.

Dairy-Free Version: Substitute the sour cream with a thick, unsweetened dairy-free yogurt (coconut or oat-based work well) and use a vegan mayonnaise. The texture will be slightly different but still delicious. I made this for a friend with a dairy allergy and she asked for seconds.

Greek-Inspired Twist: Swap the dill for fresh mint and oregano, add a tablespoon of crumbled feta cheese, and use red wine vinegar instead of white wine vinegar. This version pairs beautifully with lamb or grilled chicken. I served it alongside Greek-style kebabs last summer and it was a hit.

Spicy Kick: Add a thinly sliced jalapeño (seeds removed if you want less heat) and a pinch of red pepper flakes to the dressing. The heat cuts through the creaminess beautifully. My husband loves this version and requests it whenever we have tacos.

Extra Crunch: Toss in a handful of toasted sunflower seeds or slivered almonds just before serving. The nutty crunch adds another layer of texture. I accidentally dumped sunflower seeds into the salad once and it was a happy accident I now repeat intentionally.

Herb Swap: Not a dill fan? Use fresh basil, tarragon, or a mix of parsley and chives. Each herb gives the salad a completely different personality. Basil makes it feel Italian, tarragon adds a subtle licorice note, and chives keep it mild and oniony.

Serving & Storage Suggestions

This creamy dill cucumber salad is best served cold, straight from the fridge. I like to transfer it to a shallow serving bowl and garnish with a few extra sprigs of fresh dill for color. It pairs beautifully with almost anything coming off the grill—burgers, hot dogs, grilled chicken, steak, or fish. It is also fantastic alongside a simple sandwich or as a topping for pulled pork tacos.

For a summer barbecue, I serve this salad in a wide, chilled ceramic bowl. The contrast of the creamy white dressing against the green cucumbers and purple onion rings is visually stunning. A sprinkle of fresh dill on top makes it look restaurant-worthy.

Storage: Leftovers can be stored in an airtight container in the refrigerator for up to 2 days. The salad will continue to soften as it sits, but the salting step helps it stay crunchier longer than most cucumber salads. After 48 hours, the texture becomes noticeably softer, so I recommend eating it within that window.

Do not freeze. Cucumbers have a high water content and will turn into a mushy, watery mess when thawed. This salad is strictly a fresh, refrigerated affair.

Reheating: Do not reheat this salad. It is meant to be served cold. If you have leftovers, just give them a stir and enjoy them straight from the fridge. The flavors actually deepen overnight, so day-two salad is often even better than day-one.

Nutritional Information & Benefits

Per serving (about 1 cup, based on 6 servings total):

• Calories: 145
• Fat: 11g
• Saturated Fat: 4g
• Carbohydrates: 9g
• Fiber: 1g
• Sugar: 5g
• Protein: 3g
• Sodium: 380mg

This creamy dill cucumber salad offers more than just great taste. Cucumbers are hydrating and low in calories, making this a light, refreshing side dish. They also contain antioxidants like flavonoids and tannins that help reduce inflammation. Red onions are rich in quercetin, a powerful antioxidant that supports heart health. Fresh dill is packed with vitamins A and C and has been used traditionally to aid digestion. The sour cream and mayonnaise add calcium and healthy fats that help your body absorb fat-soluble vitamins from the other ingredients.

If you are watching your calories, you can reduce the dressing amount or use light sour cream and low-fat mayo. The flavor will still be excellent—just slightly less decadent.

Conclusion

This creamy dill cucumber salad with red onion is the summer side dish you didn’t know you were missing. It is simple enough for a Tuesday night dinner but impressive enough to bring to a holiday barbecue. The balance of creamy, tangy, herbaceous, and crunchy is honestly perfect. I have made this salad for potlucks, picnics, and quiet dinners at home, and it has never let me down.

I love that this recipe feels like a little secret—something that looks humble but tastes extraordinary. The first time I nailed the proportions, I sat on my back porch eating it straight from the bowl with a fork, feeling ridiculously proud of myself. You deserve that feeling too.

Try this recipe exactly as written the first time, then feel free to make it your own. Swap the herbs, add some heat, or throw in whatever crunchy vegetable you have on hand. Cooking should be fun, not rigid. When you make it—and I hope you do—come back and leave a comment telling me how it turned out. Did you add something unexpected? Did your family ask for seconds? I want to hear all about it. Happy cooking!

Frequently Asked Questions

Can I make this creamy dill cucumber salad ahead of time?

Absolutely. In fact, I recommend making it at least 30 minutes ahead to let the flavors meld. It keeps well in the fridge for up to 2 days, though the cucumbers will soften slightly over time.

Why do I need to salt the cucumbers?

Salting draws out excess moisture from the cucumbers, which prevents the dressing from becoming watery. This simple step keeps your salad creamy and crisp instead of soggy and diluted.

Can I use regular cucumbers instead of English cucumbers?

Yes, but you will need to peel them first and scoop out the seeds with a spoon. English cucumbers have thin skins and fewer seeds, making them ideal for this salad. Regular garden cucumbers have thicker skins and more seeds that can add bitterness.

How do I keep the red onion from being too sharp?

Soak the thinly sliced red onion in a bowl of ice water for 10 minutes before adding it to the salad. This mellows the sharp bite significantly while keeping the onion crunchy. Drain and pat dry before using.

Can I use dried dill instead of fresh?

I really do not recommend it. Dried dill lacks the bright, grassy flavor that makes this salad special. If fresh dill is unavailable, try using fresh parsley, chives, or mint instead. The flavor will be different but still delicious.

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