my grandma's cucumber salad recipe with sweet white onions

Grandma’s Creamy Cucumber Salad Recipe Made Easy

/2 Comments/in , , /by Mary Hunt
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There’s something about a simple cucumber salad that just feels like home. Crisp cucumbers, a creamy tang, and that just-right balance of sweet and bite… nothing fancy, but it always disappears fast. This is the kind of recipe my grandmother made without measuring a thing, and somehow it turned out perfect every single time. Over the years, I’ve picked up a few simple tricks that make it more reliable (and keep it from turning watery). Whether your cucumbers come from the backyard or the produce aisle, this version keeps things easy, practical, and consistently delicious.

my grandma's cucumber salad recipe with sweet white onions

Cucumber salad is one of those sides that shows up again and again for a reason. It’s quick, inexpensive, and it goes with just about everything. But if we’re being honest, it’s also easy to get wrong. Too watery, too bland, or that slightly bitter aftertaste that makes you wonder what happened. The difference isn’t in adding more ingredients. It’s in knowing a few simple things that most recipes skip.

This version sticks with the basics but improves the outcome in all the right ways. When they’re in season, usually mid-summer, they’re cheaper, crisper, and full of flavor. But even off-season, a couple of small tweaks (the kind you’ll find here) make all the difference. You’ll just make it, and it’ll turn out the way you hoped every time.

What You’ll Need

This recipe is wonderfully forgiving, which makes it perfect for real life. Just a handful of basics working together the way they should.

Cucumbers

If you’ve got a choice, English or Persian cucumbers are a great pick because they’re less watery and have fewer seeds. That said, regular garden cucumbers work just fine, especially in the middle of summer when they’re at their best. If they’re a little seedy, you can scoop some of that out, but it’s not a dealbreaker.

Sweet White Onion

The sweet white onion adds a mild bite without overpowering the salad. If all you have is a red onion, go ahead and use it. Just slice it thin. And if it’s a little too sharp, a quick soak in cold water tones it down nicely.

Sour Cream

Sour cream is what gives this salad that creamy, comforting base. If you’re looking to lighten things up, plain Greek yogurt swaps in easily, adds a little extra protein, and still tastes great. Even a dairy-free version can work here if that’s what you need.

Sugar

The sugar balances the tang and brings everything together. Start small and add more if needed. You can adjust the sugar to your taste, or even use a drizzle of honey if that’s what you have on hand.

Apple Cider Vinegar

Apple cider vinegar adds that fresh, tangy contrast that keeps the salad from feeling heavy. For a sharper flavor, substitute white vinegar and for a milder, slightly sweet version, rice vinegar is a good choice.

Sea Salt

Salt does double duty here. It boosts flavor and helps draw excess water out of the cucumbers so your salad stays creamy instead of turning into soup later. Good to know: Any salt will work, but you may need to adjust the amount depending on the type.

How to Make My Grandmother’s Creamy Cucumber Salad

grandma's cucumber salad recipe with sweet white onions mixed in bowl with wood spoons

1. Salt the Cucumbers First (Don’t Skip This)

If your cucumbers tend to be a little bitter or you’ve ever ended up with watery cucumber salad, this simple step makes all the difference.

Slice your cucumbers and place them in a colander, then sprinkle generously with salt. Use your hands to gently toss so everything is evenly coated. Let them sit for about 30 minutes. This isn’t the place to rush.

As they rest, the salt pulls excess water out and softens any bitterness in the peel. You’ll actually see the liquid collecting underneath, which is exactly what you want. Less water now means a creamier salad later.

2. Rinse and Dry

After the cucumbers have rested, give them a thorough rinse to remove the extra salt. Then take a minute to pat them dry with a clean towel.

Don’t skip the drying. It’s your insurance policy against a watery salad. Dry cucumbers help the dressing cling better and keep everything from turning runny after it chills.

3. Mix the Dressing to Taste

While the cucumbers are draining, stir together the onion, sour cream, sugar, and apple cider vinegar in a large bowl.

Before you add the cucumbers, give it a quick taste. This is your moment to adjust… maybe a touch more sugar to soften the tang, or a splash more vinegar to brighten it up. Once the cucumbers go in, it’s harder to fine-tune.

The beauty here is flexibility. You’re aiming for “tastes good to you,” which is exactly how this recipe started.

4. Bring It Together Gently

Add the cucumbers to the bowl and fold everything together until well coated. Keep it gentle. You want the slices to stay intact and the texture to stay crisp.

At this point, it should look creamy, not watery. If it doesn’t, a quick extra pat dry on the cucumbers usually does the trick.

5. Chill and Let It Do Its Thing

Cover and refrigerate for at least an hour before serving. If you’ve got the time, a little longer is even better.

This is where everything settles in. The onions mellow, the flavors blend, and that creamy, tangy balance really comes together. Give it a quick stir before serving, and it’s ready to go.

How to Keep It From Getting Watery (Even the Next Day)

There’s nothing more disappointing than making a beautiful bowl of cucumber salad… only to find it swimming in liquid a few hours later. Ask me how I know.

Here’s the deal: cucumbers hold a lot of water. If you don’t deal with it upfront, they’ll take care of it later… right in your bowl.

That’s why the salt-and-rest step matters so much. It does the work for you, drawing out extra moisture before it ever becomes a problem. After that, just make sure the cucumbers are well drained and patted dry. Not perfect… just not dripping.

Once it’s mixed and chilled, keep it covered in the fridge. And if you open it the next day and see a little liquid at the bottom, don’t panic and definitely don’t toss it. Just pour off what you don’t want, give it a stir, and it’s right back where it should be.

Easy Add-Ons for a Fresh Twist

closeup of grandma's cucumber salad recipe in bowl with sweet white onions

Once you’ve made it the classic way, this is where it gets fun. I rarely make it exactly the same twice. It just depends on what I’ve got on hand.

Fresh dill or parsley is an easy win if you want something that tastes a little brighter and more garden-fresh. A pinch of black pepper gives it just enough bite without changing the whole personality of the dish.

If you like crunch, thin-sliced radishes are a nice addition. They blend right in but add a little something extra. And if you’re like me and tend to lean toward tangy, a small splash more vinegar at the end wakes everything right back up.

The best part is, this recipe holds its own as written, but it’s flexible enough to adjust without overthinking it, which is probably why it’s stuck around in my kitchen all these years.

my grandma's cucumber salad recipe with sweet white onions
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4.67 from 3 votes

My Grandmother’s Creamy Cucumber Salad

Creamy, crunchy, sweet, and tangy, this simple cucumber salad is the kind of recipe that never lasts long at the table. Made with fresh cucumbers, a creamy sour cream dressing, and a few pantry staples, it’s easy to pull together and even better when made ahead. A few small tricks keep it from turning watery and help the flavors come together beautifully.
Prep Time15 minutes
Resting + Chill Time1 hour 30 minutes
Total Time1 hour 45 minutes
Course: Salad, Side Dish
Cuisine: American
Servings: 6
Calories: 102kcal

Ingredients

  • 4 cups sliced cucumbers about 4–5 cucumbers
  • 1-2 tablespoons sea salt
  • 1 sweet white onion thinly sliced
  • 1 cup sour cream
  • 1 tablespoon granulated sugar adjust to taste
  • 1 tablespoon apple cider vinegar

Instructions

  • Place sliced cucumbers in a colander. Sprinkle generously with salt and toss gently with your hands so everything is evenly coated. Let sit for 30 minutes to draw out excess moisture.
  • Rinse cucumbers thoroughly to remove excess salt. Pat completely dry with a clean towel. This step helps prevent a watery salad later.
  • In a large bowl, combine onion, sour cream, sugar, and apple cider vinegar. Stir well and taste. Adjust slightly if you prefer more sweetness or tang.
  • Add dried cucumbers to the bowl and gently fold until evenly coated. Keep the texture intact. Don’t overmix.
  • Cover and refrigerate for at least 1 hour before serving to allow flavors to blend.

Notes

The salt-and-rest step is essential. It removes excess water so the dressing stays creamy instead of thinning out.
English or Persian cucumbers work best, but garden cucumbers are perfect in peak season.
Swap sour cream with plain Greek yogurt for a lighter version.
Add dill, black pepper, or a splash more vinegar for variation.
Best served within 24 hours, though it can be stored up to 2 days with a quick stir before serving.

Nutrition

Calories: 102kcal | Carbohydrates: 7g | Protein: 2g | Fat: 8g | Saturated Fat: 4g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Cholesterol: 23mg | Sodium: 1177mg | Potassium: 197mg | Fiber: 1g | Sugar: 5g | Vitamin A: 303IU | Vitamin C: 5mg | Calcium: 56mg | Iron: 0.3mg

Question: Do you like your cucumber salad more creamy, tangy, or straight-up vinegar-forward? Share in the comments below.

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2 replies
  1. Sharon says:

    5 stars
    This is SO good! My husband absolutely loved it. Will make again for sure. Added the pepper and a touch more vinegar.

    Reply

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