Creamy Dill Cucumber Onion Salad: Easy 10-Minute Recipe

My husband asked for this creamy dill cucumber and onion salad three days in a row without me saying a word about it. That never happens. He’s not the type to gush over vegetables, you know. He just kept pulling the bowl out of the fridge, scooping some onto his plate next to whatever else I’d made, and going back for more. By the third day, I had to make a second batch just to keep up.

Honestly, I almost didn’t even blog this one. It felt too simple. Cucumbers, onions, sour cream, dill — it’s barely a recipe. But watching him eat it so quietly, so consistently, made me realize something. Sometimes the dishes that get the most love aren’t the fancy ones. They’re the ones that just taste like summer. Or like a backyard barbecue at your aunt’s house. Or like the kind of side dish you didn’t know you were missing until it was right there in front of you.

This salad is crisp, tangy, and impossibly creamy. The onions mellow out after a quick soak, the cucumbers stay crunchy for days (if it lasts that long), and the dill ties everything together in that unmistakable, fresh way. It’s the kind of salad that makes you wonder why you ever bought the store-bought stuff. And honestly? It takes ten minutes. Maybe less if you’re fast with a knife.

So here it is. A simple, honest, creamy dill cucumber and onion salad that earned its spot in our fridge through pure, unassuming deliciousness. I think you’re going to love it too.

Why You’ll Love This Recipe

I’ve tested this creamy dill cucumber and onion salad more times than I can count, tweaking the ratio of sour cream to mayo, the thickness of the slices, the amount of dill. This version is the one that finally stuck. Here’s why it works so well.

• Quick & Easy : From start to finish, this salad comes together in under 10 minutes. No cooking, no complicated steps. Just chop, stir, and chill.
• Simple Ingredients : You probably already have everything in your kitchen. Cucumbers, an onion, sour cream, mayonnaise, fresh dill, vinegar, and a little salt and pepper. That’s it.
• Perfect for Summer : This salad is a lifesaver on hot days when you don’t want to turn on the oven. It’s refreshing, cooling, and pairs beautifully with anything off the grill.
• Crowd-Pleaser : I’ve brought this to potlucks and barbecues, and it always gets devoured first. Even people who claim they don’t like onions come back for seconds.
• Unbelievably Delicious : The texture is what gets you. Thin, crunchy cucumber coins coated in a creamy, tangy, herby dressing. It’s simple comfort food at its finest.

What makes this recipe different from the rest? It’s the technique of salting the cucumbers first. This little step draws out excess water so your dressing doesn’t get watery and thin. It’s a game-changer, honestly. And the combination of sour cream and mayo gives you that perfect balance of tang and richness without being too heavy. This isn’t just another cucumber salad — it’s the one you’ll make all summer long.

What Ingredients You Will Need

This recipe uses simple, everyday ingredients to create something surprisingly special. The magic is in the balance of flavors and the freshness of the produce. Here’s everything you’ll need for the perfect creamy dill cucumber and onion salad.

• English cucumbers (2 large) — I prefer English cucumbers because they have thinner skins and fewer seeds. No need to peel them. Look for firm, dark green cucumbers without any soft spots.
• Red onion (1 medium) — Red onions are milder than yellow or white onions, which makes them perfect for raw salads. You can also use sweet Vidalia onions if you prefer something even gentler.
• Sour cream (½ cup) — Full-fat sour cream gives the dressing richness and body. If you’re looking for a lighter option, Greek yogurt works beautifully too.
• Mayonnaise (¼ cup) — A little mayo adds creaminess and helps the dressing cling to the cucumbers. I like using Hellmann’s or Duke’s for the best flavor.
• Fresh dill (3 tablespoons, chopped) — Fresh dill is non-negotiable here. Dried dill just won’t give you that bright, grassy, slightly sweet flavor that makes this salad sing.
• White vinegar (2 tablespoons) — The acidity cuts through the creaminess and balances everything out. Apple cider vinegar works well too if that’s what you have on hand.
• Granulated sugar (1 teaspoon) — Just a tiny bit of sugar rounds out the tangy dressing and brings the flavors together. You won’t taste it, I promise.
• Salt (1 teaspoon, plus more for salting cucumbers) — Salt draws water out of the cucumbers and seasons the dressing. I use fine sea salt for even distribution.
• Black pepper (½ teaspoon, freshly ground) — A little pepper adds a subtle warmth that complements the dill beautifully.

That’s really all you need. No fancy ingredients, no obscure spices. Just fresh produce and a few pantry staples that come together in minutes. If you’re looking for a similar fresh and creamy side, you might also enjoy this fresh Greek yogurt veggie dip with herbs — it has that same bright, herby energy.

Equipment Needed

You don’t need much to make this creamy dill cucumber and onion salad, which is part of the beauty. Here’s what you’ll want to have on hand.

• Sharp chef’s knife — A good knife makes slicing cucumbers and onions thin and even. Dull knives are more likely to slip and crush the vegetables.
• Cutting board — Any sturdy cutting board will do. I prefer a large wooden board because it gives me plenty of room to work.
• Large mixing bowl — You’ll need a bowl big enough to toss everything together without spilling. A glass or ceramic bowl works great.
• Small bowl — For whisking together the dressing ingredients before pouring them over the vegetables.
• Whisk or fork — To combine the sour cream, mayo, vinegar, sugar, and seasonings into a smooth dressing.
• Colander — You’ll need this to drain the salted cucumbers after they’ve released their water. A fine-mesh strainer works too.
• Paper towels or clean kitchen towel — For patting the cucumbers dry after salting. This step is key for keeping the dressing thick and creamy.
• Mandoline slicer (optional but recommended) — If you want perfectly even, paper-thin slices, a mandoline is your best friend. Just watch your fingers! I use a Benriner mandoline and it’s been worth every penny.
• Covered storage container — For storing leftovers in the fridge. A glass container with a tight-fitting lid works perfectly.

If you don’t have a mandoline, don’t worry. A sharp knife and a steady hand will get you beautiful slices too. The key is just to keep them as uniform as possible so they all absorb the dressing evenly.

Preparation Method

Let’s get into the step-by-step process. This creamy dill cucumber and onion salad comes together fast, but there are a few key techniques that make all the difference. Follow along and you’ll have a perfect bowl every time.

1. Wash and dry the cucumbers. Give your English cucumbers a good rinse under cool water and pat them dry. No need to peel them — the skin adds color and a nice bit of texture.
2. Slice the cucumbers thinly. Using a sharp knife or mandoline, slice the cucumbers into rounds about ⅛-inch thick. If you’re using a knife, try to keep the slices as even as possible. Uneven slices mean some will be crunchier and others will soak up too much dressing.
3. Salt the cucumbers. Place the sliced cucumbers in a colander set over a bowl or in the sink. Sprinkle them with about 1 teaspoon of salt and toss gently to coat. Let them sit for 15-20 minutes. You’ll see beads of water forming on the surface — that’s the salt drawing out excess moisture. This step is crucial. Skip it and your dressing will turn watery and thin.
4. While the cucumbers rest, prepare the onion. Peel the red onion and slice it as thinly as possible. I like to use a mandoline for this too. If you’re sensitive to raw onion flavor, place the sliced onion in a small bowl of ice water for 10 minutes. This mellows the bite considerably. Drain and pat dry before adding to the salad.
5. Make the dressing. In a small bowl, whisk together the sour cream, mayonnaise, white vinegar, sugar, remaining salt, and black pepper until smooth. Taste it. Adjust the salt or vinegar to your liking. Stir in the chopped fresh dill.
6. Dry the cucumbers. After 15-20 minutes, you’ll notice a lot of liquid has pooled at the bottom of the colander. Transfer the cucumber slices to a clean kitchen towel or a layer of paper towels and pat them dry gently. You don’t need to squeeze them, just absorb the surface moisture.
7. Combine everything. In a large mixing bowl, add the dried cucumber slices and the sliced red onion. Pour the dressing over the top and toss gently until everything is evenly coated. Use a rubber spatula to scrape every last bit of dressing out of the bowl — you don’t want to waste any of that goodness.
8. Chill before serving. This salad is best after it’s had at least 30 minutes in the fridge. The flavors meld together as it sits, and the cucumbers absorb just a little of that creamy dressing without losing their crunch. Cover the bowl with plastic wrap or transfer to a storage container and refrigerate.
9. Give it a final stir. Right before serving, give the salad a gentle toss to redistribute the dressing. Taste and adjust seasoning if needed — sometimes a pinch more salt or a splash of vinegar wakes everything up.
10. Garnish and serve. Transfer to a serving bowl and sprinkle a little extra fresh dill on top for color. Serve cold or at room temperature.

One thing I learned the hard way: don’t skip the salting step. The first time I made this salad, I was in a hurry and thought, “It’ll be fine.” It was not fine. The dressing turned into a soupy mess within an hour. Salting the cucumbers is not optional — it’s the secret to a creamy, not watery, salad.

Cooking Tips & Techniques

Over the years, I’ve made this creamy dill cucumber and onion salad more times than I can count. Some batches were better than others. Here’s what I’ve learned along the way.

• Salt generously but not excessively. You need enough salt to draw out the cucumber’s water, but too much will make the salad overly salty. I use about 1 teaspoon for two large cucumbers, then rinse them briefly before drying. This removes the excess salt while still keeping the benefits of the salting process.
• Don’t overdress. You might be tempted to pour all the dressing on at once, but start with about three-quarters of it. Toss, check the consistency, and add more if needed. You want the cucumbers coated, not swimming. Remember, they’ll continue to release a tiny bit of moisture even after salting.
• Use fresh dill, not dried. I know it’s tempting to use what’s in the pantry, but dried dill has a completely different flavor profile — it’s more muted and can taste a little hay-like. Fresh dill is bright, almost lemony, and it makes this salad sing. If you absolutely must substitute, use half the amount of dried dill and add it early so it has time to rehydrate.
• Let it rest. This salad is good immediately, but it’s even better after 30-60 minutes in the fridge. The flavors meld together, the onions mellow out, and the dill infuses the dressing. It’s the kind of dish that tastes like it’s been marinating all day, even though it only took you ten minutes.
• Multitask wisely. While the cucumbers are salting, you can slice the onion, make the dressing, and clean up your workspace. That way, when the cucumbers are ready, you just have to dry them and toss everything together. It makes the whole process feel effortless.

I once forgot to salt the cucumbers for a potluck and had to watch my beautiful salad turn into a watery mess within an hour. It was humbling. Now I set a timer every single time. Learn from my mistakes!

Variations & Adaptations

One of the best things about this creamy dill cucumber and onion salad is how easy it is to adapt. Here are a few ways to switch it up depending on what you have on hand or what you’re craving.

• Greek Yogurt Version : Swap the sour cream for full-fat Greek yogurt. It adds a tangier flavor and a boost of protein. The texture will be slightly thicker, so you might need to add a splash of milk or water to loosen it up.
• Vegan Adaptation : Use a dairy-free sour cream or yogurt alternative (I like the one from Forager Project) and a vegan mayonnaise. The flavor will be slightly different, but the creamy, tangy essence remains. Just make sure to check the salt levels, as vegan alternatives can vary.
• Herb Swap : Don’t have dill? No problem. Fresh parsley, chives, or even mint work beautifully here. A combination of parsley and chives gives you a more savory, oniony flavor, while mint adds a fresh, cooling note that’s perfect for hot summer days.
• Add Some Crunch : Toss in a handful of thinly sliced radishes or some finely chopped celery for extra crunch. The peppery bite of radishes pairs surprisingly well with the creamy dill dressing.
• Make It a Meal : Add some protein to turn this side dish into a light lunch. Flaked canned tuna, shredded rotisserie chicken, or even some crumbled feta cheese all work wonderfully. I’ve also added chickpeas for a vegetarian-friendly protein boost.
• Spicy Kick : If you like a little heat, add a pinch of red pepper flakes or a thinly sliced jalapeño to the dressing. The heat cuts through the creaminess and adds a whole new dimension.

My personal favorite variation? I add a handful of fresh cherry tomatoes, halved, right before serving. The burst of sweetness from the tomatoes against the tangy, creamy dressing is just incredible. It’s become my go-to summer side dish.

Serving & Storage Suggestions

This creamy dill cucumber and onion salad is incredibly versatile. Here’s how to serve it and keep it fresh.

Serving Temperature : Serve this salad cold or at room temperature. I prefer it straight from the fridge — it’s so refreshing on a hot day. If you’re serving it at a barbecue or potluck, keep it chilled until the last minute. You can set the bowl in a larger bowl filled with ice to keep it cool.

Presentation : Transfer the salad to a shallow serving bowl or a wide platter so the cucumbers are spread out in a single layer. Sprinkle a little extra fresh dill and some cracked black pepper on top for a pretty finish. A few thin slices of red onion arranged on top make it look restaurant-worthy.

Complementary Dishes : This salad is a natural side for anything off the grill — burgers, hot dogs, grilled chicken, or steak. It also pairs beautifully with fish, especially salmon or grilled trout. For a lighter meal, serve it alongside a spicy steak bowl with roasted cauliflower and tahini citrus for a satisfying contrast of flavors. It’s also fantastic with sandwiches, wraps, or even as a topping for pulled pork tacos.

Storage : Store leftovers in an airtight container in the refrigerator for up to 3 days. The cucumbers will continue to soften slightly, but they’ll still have a pleasant crunch if you salted them properly. The flavors actually get better on the second day as the dressing melds with the vegetables.

Reheating : Do not reheat this salad. It’s meant to be served cold. If it’s been sitting out for a while and has warmed up, just pop it back in the fridge for 15-20 minutes before serving.

Flavor Development : This salad is at its best within the first 24 hours. After that, the cucumbers will release a little more moisture and the dressing will thin out slightly. If that happens, you can drain off the excess liquid and add a spoonful of fresh sour cream to revive it.

Nutritional Information & Benefits

This creamy dill cucumber and onion salad is surprisingly light for how indulgent it tastes. Here’s a rough breakdown per serving (about 1 cup).

• Calories : Approximately 120-150 calories per serving
• Fat : 10-12g (mostly from the sour cream and mayo)
• Carbohydrates : 6-8g
• Fiber : 1-2g
• Protein : 2-3g
• Sugar : 3-4g (naturally occurring from the vegetables)
• Sodium : 300-400mg (depending on how much salt you use)

Health Benefits : Cucumbers are incredibly hydrating — they’re about 96% water — which makes this salad a great choice for staying cool and hydrated in the summer. They also contain vitamin K and antioxidants like flavonoids and tannins. Dill is rich in vitamin C and manganese, and it’s been used traditionally to aid digestion. Red onions are packed with quercetin, a powerful antioxidant that supports heart health.

Dietary Considerations : This recipe is naturally gluten-free and can easily be made vegetarian or vegan with simple swaps. If you’re watching your fat intake, you can use light sour cream or Greek yogurt and reduce the amount of mayonnaise. For a lower-sodium version, use less salt when salting the cucumbers and rinse them thoroughly before drying.

Potential Allergens : This recipe contains dairy (sour cream) and eggs (mayonnaise). If you have allergies, use the vegan adaptations mentioned in the variations section. Always check labels on store-bought products to ensure they’re free from any allergens you’re avoiding.

I love that this salad feels like a treat but is actually packed with fresh, whole ingredients. It’s the kind of dish you can feel good about eating — and serving to your family.

Conclusion

This creamy dill cucumber and onion salad is proof that the simplest things are often the best. It’s quick, fresh, and incredibly satisfying. The crunch of the cucumbers, the tangy creaminess of the dressing, and the bright pop of dill come together in a way that feels both nostalgic and new. It’s the kind of side dish that quietly becomes the star of the meal.

I hope you give this recipe a try and make it your own. Maybe you’ll add extra dill like I do, or toss in some cherry tomatoes, or serve it alongside your favorite grilled protein. However you make it, I think you’ll find yourself reaching for this bowl again and again. It’s just that good.

If you do make it, I’d love to hear how it turned out. Leave a comment below, tag me in your photos, or share your own twist on this classic summer salad. And if you’re looking for another creamy, comforting side dish, you might also enjoy this creamy roasted tomato basil soup with easy toasted croutons — it’s perfect for cooler days when you’re craving something warm and cozy.

Happy cooking, friends. And don’t forget to taste as you go — that’s where the magic happens.

Frequently Asked Questions

Can I make this salad ahead of time?

Yes, absolutely. This creamy dill cucumber and onion salad actually benefits from resting in the fridge for at least 30 minutes before serving. You can make it up to 24 hours in advance. Just give it a good stir before serving and add a little extra fresh dill on top for color.

Why are my cucumbers watery after adding the dressing?

This usually happens when you skip the salting step. Salting the cucumbers draws out excess moisture before you add the dressing. If you’re in a rush and can’t wait the full 15-20 minutes, you can also use a salad spinner to remove some water after slicing, though it’s not quite as effective.

Can I use regular cucumbers instead of English cucumbers?

You can, but you’ll need to adjust a few things. Regular cucumbers have thicker skins and more seeds. I recommend peeling them and scooping out the seeds with a spoon before slicing. Otherwise, the texture can be a bit watery and the skins can be tough.

How do I keep the onions from being too strong?

Soak the sliced red onion in a bowl of ice water for 10 minutes before adding it to the salad. This mellows the sharp bite significantly. Drain them well and pat dry before tossing with the cucumbers and dressing. You can also use sweet Vidalia onions, which are naturally milder.

Can I freeze this salad?

I don’t recommend freezing this salad. The cucumbers have a very high water content, and freezing will turn them into a mushy, watery mess when thawed. This salad is best enjoyed fresh or within a few days of making it. If you have leftovers, just keep them in the fridge.

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