Cucumber Salad with Sour Cream and Dill

This cucumber salad is one of those recipes that earns a permanent spot in your summer rotation not because it’s trendy, but because it’s genuinely good. Crisp cucumbers, a creamy sour cream dressing loaded with dill, a splash of vinegar for brightness — it comes together in minutes and tastes better the longer it sits.

If you grow cucumbers in Iowa like I do, you know July hits and suddenly you’re drowning in them. This salad is one of the best ways to work through a big harvest, and it holds up in the fridge for days.

Why This Works

A lot of cucumber salads go wrong in one of two ways: they’re either watery and bland, or the dressing is so heavy it turns the cucumbers to mush. This recipe avoids both.

The step that makes the biggest difference is salting the cucumbers before you dress them. Sliced cucumbers hold a lot of water, and if you skip that step, that water dilutes your dressing within an hour and you end up with a soupy bowl rather than a salad.

Salt draws the moisture out so it can be rinsed away, and what’s left is a cucumber with actual structure that stays crisp even after sitting overnight.

The sour cream dressing is creamy without being heavy. White vinegar gives it a clean, sharp tang that cuts through the richness of the sour cream, and dried dill weed brings that classic flavor that makes this taste like something your grandmother would have set out at a summer potluck — in the best possible way.

A little sugar rounds everything out without making it sweet. The balance of those four things — creamy, tangy, herby, just barely sweet — is why this works so well.

One more thing that makes this recipe reliable: it’s a make-ahead dish. You mix it up, seal the bowl, and let it sit in the fridge for 12 to 24 hours.

The cucumbers soak up the dressing and the flavors meld together in a way that’s noticeably better than if you served it immediately. That makes it ideal for cookouts, potlucks, or any situation where you’d like to have a side dish handled the day before.

What You Need to Know Before You Start

A few things will set you up for success with this salad before you even pick up a knife.

The salting step is not optional. I know it feels like extra work when you’re in a hurry, but pulling moisture out of the cucumbers before dressing them is what keeps this salad from turning into a puddle.

Sprinkle the sliced cucumbers with about half a teaspoon of salt beyond what the recipe calls for, let them sit in a colander for 20 to 30 minutes, then rinse and pat them dry. That rinse is important — you don’t want the salad to taste oversalted.

Thin slices matter. You want cucumbers thin enough that they flex easily and absorb the dressing, but not so thin they fall apart.

About an eighth of an inch is the target. Doing that by hand with a knife is possible but slow.

A mandoline slicer gets every slice consistent and cuts the prep time dramatically. I’ve used a Norpro mandoline slicer for years — it’s straightforward to use, easy to clean, and runs around $17.

Worth every penny for any recipe that calls for repetitive slicing.

Plan ahead. This salad genuinely needs time to develop.

If you make it and taste it right away, the dressing will seem thin and the cucumbers will seem underdressed. Give it at least 12 hours in the fridge and you’ll taste the difference.

Make it the morning of a cookout or the night before and it’ll be at its best.

Use a bowl with a lid. You’ll be refrigerating this for up to 24 hours before serving, and ideally storing leftovers for a few days after.

A large mixing bowl with a tight-fitting lid keeps everything contained and makes it easy to toss before serving. I reach for a glass mixing bowl set with lids for this kind of recipe — they go straight from fridge to table and you can see what’s inside.

Ingredients and What to Look For

This recipe uses a short list of ingredients. Here’s what to pay attention to when you’re picking them out.

Cucumbers

The recipe calls for four large cucumbers. Garden cucumbers — the standard slicing variety — work perfectly here.

If you’re buying from the store, look for cucumbers that feel firm all the way to the ends with no soft spots. English cucumbers (the long, shrink-wrapped ones) also work well and tend to have fewer seeds, which means less moisture to deal with.

Avoid cucumbers that have gone soft at the tips or feel hollow when you press on them.

If your cucumbers have thick skins or a lot of seeds, peel them fully and consider scraping out some of the seed core with a spoon before slicing. Garden cucumbers mid-summer can be on the larger side, so use your judgment — four large cucumbers is a generous amount that feeds a crowd.

Sour Cream

Full-fat sour cream gives you the best texture and flavor. Low-fat works, but the dressing will be thinner and the cucumber will taste it.

This is not the place to swap in Greek yogurt unless you genuinely prefer that — it changes the flavor in a way that’s noticeable, though some people like it.

Dried Dill Weed

Dried dill is what this recipe is built around. If you happen to have fresh dill from your garden, use about a tablespoon and a half instead of the one and a half teaspoons of dried.

Fresh dill is bright and grassy in a way dried isn’t, but dried works reliably year-round and the flavor comes through clearly once the salad has had time to sit.

White Vinegar

White vinegar gives a clean, sharp tang. Apple cider vinegar is a common substitution and works well — it brings a slightly fruitier, mellower acidity.

Rice vinegar is another option if you want something gentler. What you don’t want is balsamic or red wine vinegar, which would clash with the dill and sour cream.

Sweet Onion (Optional)

A medium sweet onion, thinly sliced, is listed as optional in this recipe. It’s a good addition if you like a little bite and complexity in your salad.

Vidalia or Walla Walla onions are the mildest options. Slice them as thin as you slice the cucumbers.

If raw onion is too sharp for your taste, soak the slices in cold water for ten minutes before adding them to the salad — it takes the edge off without removing the flavor.

How to Make Cucumber Salad

Step 1: Peel and Slice the Cucumbers

Peel the cucumbers and slice them as thin as you can get them — about an eighth of an inch. A mandoline slicer makes this fast and consistent.

If you’re slicing by hand, a sharp chef’s knife and a steady hand get the job done, just more slowly. If you’re using a sharp chef’s knife, make sure it’s actually sharp — a dull knife will compress and bruise the cucumbers instead of slicing cleanly through them.

Slice the onion thin at this stage too, if you’re including it.

Step 2: Salt and Drain

Place the sliced cucumbers in a colander set over a bowl or in the sink. Sprinkle with about half a teaspoon of salt (this is extra salt, on top of what the recipe calls for in the dressing).

Toss to coat and let them sit for 20 to 30 minutes. You’ll see liquid pooling in the bowl underneath — that’s the water you want out of the salad.

After they’ve drained, rinse the cucumbers thoroughly under cold water and pat or spin them dry. A salad spinner works great here if you have one — it removes more moisture than patting with paper towels and is faster.

Step 3: Make the Dressing

In a separate bowl, whisk together the sour cream, sugar, white vinegar, dried dill weed, salt, and pepper until smooth. Taste it at this stage — it should be tangy, creamy, and well-seasoned.

If it tastes flat, add a pinch more salt. If it’s too tart, add a small amount of sugar.

Get it where you want it before it goes on the cucumbers.

Step 4: Combine and Refrigerate

Add the drained cucumbers (and onion, if using) to a large bowl or container with a tight-fitting lid. Pour the dressing over the top and toss gently to coat everything.

Seal the container and refrigerate for at least 12 hours. Twenty-four hours is better.

The cucumbers will soften slightly and take on the flavor of the dressing in a way that 30 minutes in the fridge simply won’t accomplish.

Step 5: Toss and Serve

When you’re ready to serve, give the salad a good toss — the dressing will have settled to the bottom of the bowl. Taste and adjust seasoning if needed.

Serve cold, straight from the fridge. This salad is best served as a side dish alongside grilled meats, sandwiches, or anything from the summer cookout spread.

Tips

• Don’t skip the salting and draining step — it’s the single most important thing you can do to keep this salad from turning watery.
• A mandoline slicer makes thin, even slices fast. If you’re making this regularly through cucumber season, it’s a worthwhile tool to have.
• Full-fat sour cream gives you a richer, creamier dressing. Low-fat works but the texture is thinner.
• Fresh dill is a worthy upgrade if you have it. Use about three times the amount of dried dill called for.
• Adding sliced sweet onion is optional, but it adds a layer of flavor that pairs well with the dill. Vidalia onions are the mildest choice.
• Taste the dressing before adding it to the cucumbers. Adjust the vinegar and sugar to your preference — some people like it tangier, some like it more balanced.
• This salad is better on day two than day one. Make it ahead whenever you can.
• If you’re serving a smaller group, this recipe scales down easily — just halve everything.
• The salad keeps well for three to four days in the fridge, though the cucumbers will soften over time. It’s at its crispest in the first 24 to 48 hours.

Storage

Store this cucumber salad in a sealed container in the refrigerator. It keeps well for three to four days.

The cucumbers will continue to soften as they sit in the dressing, so if texture matters to you, eat it within the first two days for the best experience. After that it’s still good — just softer.

Do not freeze this salad. Cucumbers and sour cream do not hold up to freezing.

The cucumbers turn mushy and the dressing separates. There’s no salvaging it after that.

If you’re making a large batch and want to extend how long it stays crisp, store the dressing separately and combine with the drained cucumbers each day rather than all at once. That said, most people find it disappears before the three-day mark, so it rarely becomes an issue.

Frequently Asked Questions

Can I use Greek yogurt instead of sour cream?

Yes, Greek yogurt works as a substitute. Use plain full-fat Greek yogurt in the same amount.

The flavor will be slightly tangier and less rich than with sour cream, and the dressing will be a bit thinner. Some people prefer it that way.

If the yogurt makes the dressing too tart, reduce the vinegar slightly or add a touch more sugar.

Do I have to peel the cucumbers?

For garden cucumbers and standard store-bought slicing cucumbers, yes — the skin tends to be thick and waxy and doesn’t soften the way the flesh does. For English cucumbers (the long, shrink-wrapped variety), the skin is thinner and more tender, so peeling is optional.

It’s a personal preference call, but most people find the texture of this salad better without the thick skin.

My salad got watery. What went wrong?

Almost always, this means the cucumbers weren’t drained enough before the dressing was added. Cucumbers release a significant amount of water, especially after they’ve been sitting in a salty environment.

Make sure you’re salting and draining them for a full 20 to 30 minutes, rinsing thoroughly, and drying them before adding the dressing. Also make sure the container is sealed tightly in the fridge — air exposure can accelerate the release of liquid.

Can I add other vegetables to this salad?

Definitely. Thinly sliced radishes add color and a peppery bite.

Cherry tomatoes halved and added just before serving bring a burst of sweetness — add them at the end rather than during the marinating time or they’ll get too soft. Thinly sliced bell pepper adds crunch and a little sweetness.

Stick to vegetables that can handle the dressing without falling apart.

Can I make this the day before?

Yes, and you should. This salad is designed to be made ahead.

The recommended resting time is 12 to 24 hours in the refrigerator. Making it the night before a cookout or potluck is exactly the right move.

It will be more flavorful and well-seasoned than if you serve it right after mixing.

What’s the best cucumber variety for this recipe?

Standard garden slicing cucumbers work great and are what this recipe was built around. English cucumbers are a close second — thinner skin and fewer seeds make them slightly easier to work with.

Kirby cucumbers (the small pickling variety) have a firmer texture and work well too, though you’ll need more of them. Persian cucumbers are another solid option if you find them at your grocery store — they’re small, tender-skinned, and have a mild flavor.

Avoid the very large, seedy cucumbers that sometimes show up late in the garden season — they tend to be more bitter and waterlogged.

Is this the same as German cucumber salad?

It’s similar. Traditional German cucumber salad (Gurkensalat) is typically made with a sour cream or vinegar-based dressing and dill, which is exactly what this recipe uses.

Some versions use heavy cream instead of sour cream, and some skip the sugar. If you’ve had German cucumber salad at a summer gathering or at a German-style restaurant, this will taste familiar.

It’s a classic combination that shows up across a lot of different cuisines for good reason — it works.

Related Recipes

Pasta salad is a summer staple that feeds a crowd and holds up well in the fridge. Coleslaw is the natural pairing for anything coming off the grill.

If you’re working through garden produce, zucchini recipes round out the list of what to do with a mid-summer harvest.