Creamy Cucumber Salad Recipe

This creamy cucumber salad recipe uses 2 large English cucumbers (about 700g total), 2 teaspoons kosher salt for draining, and a dressing of 1/2 cup sour cream, 1/4 cup mayonnaise, 2 tablespoons white vinegar, and fresh dill, chilled for at least 45 minutes to thicken. Salting the sliced cucumbers for 30-45 minutes and patting them dry is the key step that prevents the dressing from turning watery within an hour. This version stays creamy for up to 24 hours in the refrigerator.

What Creamy Cucumber Salad Is

Creamy cucumber salad is a chilled side dish of thinly sliced cucumbers tossed in an acidic, dairy-based dressing that is thick enough to coat the cucumbers without pooling at the bottom of the bowl.

The classic mistake is skipping the salt-and-drain step. Cucumbers are 95-96% water by weight according to USDA FoodData Central, and that water leaches out as soon as salt and acid hit the slices. Without pre-salting, a cup of sliced cucumber can release 2-3 tablespoons of water in the first hour, which thins sour cream or yogurt instantly.

Creamy Cucumber Salad Recipe: Exact Ingredients

This recipe makes 4-6 servings (about 6 cups total). Use a kitchen scale for the cucumbers if possible for the most consistent dressing ratio.

• 2 large English cucumbers – about 700g or 24 oz total, sliced 1/8-inch (3mm) thick
• 2 teaspoons Diamond Crystal kosher salt (use 1 1/4 teaspoons if using Morton kosher salt, or 1 teaspoon fine sea salt) – divided
• 1/2 medium red onion (about 80g), very thinly sliced
• 1/2 cup (120g) full-fat sour cream
• 1/4 cup (55g) mayonnaise, Hellmann’s / Best Foods type or Duke’s
• 2 tablespoons (30ml) distilled white vinegar (5% acidity)
• 1 tablespoon (15ml) extra-virgin olive oil – optional, adds body
• 1 teaspoon granulated sugar or honey
• 1/2 teaspoon freshly cracked black pepper
• 1/4 teaspoon garlic powder
• 2 tablespoons fresh dill, finely chopped (or 2 teaspoons dried dill)
• 1 tablespoon fresh chives, sliced (optional)

Why These Amounts Work

The 2:1 ratio of sour cream to mayonnaise gives you tang and stability. Sour cream alone can break and become watery when mixed with cucumber juice and vinegar, while mayonnaise alone is too heavy and masks the cucumber. The 2 tablespoons of vinegar balance the fat without making the dressing runny. Sugar does not make the salad sweet at 1 teaspoon; it rounds the acidity so you do not need extra vinegar.

Which Cucumbers and Dairy to Use

Not all cucumbers behave the same in a creamy dressing. Your choice directly affects how much water you will need to drain and how long the salad stays crisp.

If you need a dairy-free version, use an unsweetened plain plant-based sour cream alternative and vegan mayonnaise in the same amounts. Avoid coconut yogurt, which is too thin and sweet for this dressing.

Step-by-Step Method With Reasons

Step 1: Slice cucumbers 1/8-inch thick (3mm). This thickness is thin enough to absorb dressing and salt quickly, but thick enough to stay crisp. Thinner than 1/16-inch will wilt to translucency; thicker than 1/4-inch will not release enough water during salting and will water out later in the bowl. Use a mandoline with a guard for uniformity if you have one.

Step 2: Salt and drain for 30-45 minutes (do not skip). Toss cucumber slices with 1 1/2 teaspoons kosher salt in a colander set over a bowl. Let stand 30 minutes for English/Persian cucumbers, 45 minutes for seeded slicing cucumbers. You will see 1/4 to 1/3 cup liquid drain off. This is water that would otherwise thin your dressing. After draining, spread slices on a clean kitchen towel or paper towels and pat completely dry. Do not rinse.

Step 3: Soften the onion while cucumbers drain. Place thin-sliced red onion in a small bowl, cover with cold water and 1 teaspoon vinegar for 10 minutes, then drain and pat dry. This quick soak removes harsh sulfur bite without losing crunch, so the onion does not overpower the dill and cucumber.

Step 4: Mix the dressing separately. In a large mixing bowl, whisk sour cream, mayonnaise, 2 tablespoons white vinegar, olive oil if using, 1 teaspoon sugar, remaining 1/2 teaspoon kosher salt, black pepper, and garlic powder until smooth. Fold in dill and chives. Mixing separately ensures sugar and salt fully dissolve; if you toss everything together at once, undissolved salt draws more water out unevenly.

Step 5: Combine and chill 45 minutes to 2 hours. Add dry cucumbers and onions to the dressing and toss gently to coat. Cover and refrigerate at 37-40°F for at least 45 minutes. Chilling does three things: it lets the cucumbers absorb seasoning, it lets the mayonnaise emulsion firm up, and it allows the garlic and dill to bloom. The salad is at its best texture between 45 minutes and 4 hours.

Step 6: Taste and adjust just before serving. Cucumbers vary in water content, so check seasoning after chilling. If needed, add 1/2 teaspoon more vinegar for brightness or a pinch more salt. If the dressing looks slightly thick after chilling, toss gently – do not add milk or water to thin it, as that will make it watery faster.

Worked Example: Scaling the Recipe

For a potluck that serves 12, double everything: 1400g cucumbers (4 large English), 4 teaspoons Diamond Crystal kosher salt for draining, 1 cup sour cream, 1/2 cup mayonnaise, 4 tablespoons vinegar. Use a large sheet pan lined with towels to drain the larger volume in one layer instead of piling cucumbers deep in a colander, which traps water in the middle. Drain time stays at 30-45 minutes, but you will collect about 2/3 cup liquid. Toss in a very large bowl to avoid breaking slices.

Substitutions That Keep the Dressing From Getting Watery

The dressing fails when extra water is introduced. Every substitution should either reduce water or add an emulsifier.

• Instead of white vinegar: Use apple cider vinegar (same 2 tablespoons) for a fruitier note, or 2 tablespoons white wine vinegar. Avoid rice vinegar at the same amount – it is less acidic (4.3% vs 5%) and you will need 2 1/2 tablespoons, which adds water.
• Instead of sour cream: Use full-fat Greek yogurt (5% or 10%) strained through cheesecloth for 30 minutes. Do not use regular plain yogurt without straining; per USDA data it contains about 88% water vs 72% for sour cream. If you must use 0% or 2% Greek yogurt, increase mayonnaise to 1/3 cup to add fat stability.
• Instead of mayonnaise: If avoiding eggs, use 1/4 cup extra sour cream plus 1 tablespoon olive oil whisked in vigorously. The oil helps emulsify and mimic mayo’s body. Do not just omit mayo without adding fat.
• Instead of fresh dill: Use 2 teaspoons dried dill weed. Add it to the dressing 15 minutes before mixing with cucumbers so it rehydrates. Do not use dried dill stems, which are woody.
• Adding extra vegetables: Cherry tomatoes, radishes, or bell peppers add water. If adding 1 cup halved cherry tomatoes, salt them separately for 15 minutes, drain, and add just before serving to avoid pink, watery dressing.
• For a lower-sugar version: Omit the 1 teaspoon sugar and add 1/4 teaspoon more salt plus 1 teaspoon more vinegar. Taste after chilling; the extra acid compensates for the missing roundness.

Never add salt at the table without chilling again briefly. Salt added at serving draws water within minutes. If you know guests like extra salt, add it to the dressing base before tossing.

Storage, Food Safety, and Make-Ahead

Creamy cucumber salad is a TCS food (time/temperature control for safety) because of dairy and cut cucumbers. According to FDA Food Code guidance for cut produce and dairy-based salads, keep the salad at 40°F or below and do not leave it at room temperature for more than 2 hours (1 hour if ambient temperature is above 90°F).

• Refrigerator life: Best within 24 hours. Cucumbers remain crisp for 12 hours, then gradually soften. After 48 hours the dressing will start to separate and should be discarded.
• Make-ahead strategy: You can salt, drain, and dry cucumbers up to 12 hours ahead and keep them refrigerated in a zip-top bag with a paper towel. Keep dressing separately in a jar for up to 2 days. Toss together 45 minutes before serving for the freshest texture.
• Do not freeze: Cucumbers and sour cream both break when frozen; thawed salad will be mushy and grainy.
• Common mistakes that cause watery leftovers: Using warm cucumbers from the garden without chilling first, covering the salad while still slightly warm (creates condensation), and stirring repeatedly with a wet spoon. Always use a dry serving spoon.
• Cleaning mandoline and knives: Cucumber juice leaves a film. Wash mandoline blades immediately after slicing to prevent sticking and dullness.

Serving Ideas

Creamy cucumber salad pairs best with richer mains that benefit from acid and crunch: grilled chicken, smoked salmon, pork chops, or barbecue. For an equestrian event or barn potluck in warm weather, keep the serving bowl nested inside a larger bowl filled with ice to hold it below 40°F without making the dressing icy. Garnish with a small sprig of dill just before setting it out so it does not wilt into the dressing.

Per serving (1/6 of recipe, about 1 cup): approximately 130-150 calories, 11g fat, 6g carbohydrate, 2g protein, based on full-fat sour cream and mayonnaise. Values vary with exact brands used.

Frequently Asked Questions

Why is my creamy cucumber salad watery even though I followed the recipe?

The most common cause is not drying the cucumbers thoroughly after salting, or using garden cucumbers without seeding. Even 2 tablespoons of residual cucumber water will thin 3/4 cup of dressing noticeably. Make sure you pat the slices completely dry with towels after the 30-45 minute drain, and measure vinegar precisely.

Can I make creamy cucumber salad without mayonnaise?

Yes, but use a stable substitute. Replace the 1/4 cup mayonnaise with an additional 1/4 cup full-fat sour cream plus 1 tablespoon olive oil whisked until emulsified. All-yogurt or all-sour cream dressings without added fat will be tangier and tend to separate faster, especially after 2 hours in the fridge.

How far in advance can I make it for a party?

For the best texture, toss the cucumbers and dressing together 45 minutes to 4 hours before serving. You can prep components separately up to 24 hours ahead: keep drained dry cucumbers and dressing in separate airtight containers at 40°F, then combine. Fully mixed salad is still good the next day but will be softer.

Do I need to peel English cucumbers?

No, English and Persian cucumbers have thin, tender skin that adds color and helps slices hold shape, so peeling is not needed. Only peel standard American slicing cucumbers, which have a thick waxy coating applied for shelf life that can taste bitter and waxy in a delicate dressing.

Can I use dried dill instead of fresh?

Yes. Use 2 teaspoons of dried dill weed in place of 2 tablespoons fresh dill. Because dried herbs are more concentrated, add them to the dressing and let it sit for 15 minutes before tossing with cucumbers so the flavor distributes evenly. Avoid dried dill seed, which has a different, caraway-like flavor.

How long can creamy cucumber salad sit out on a buffet?

No more than 2 hours at room temperature, and only 1 hour if it is above 90°F outdoors, per FDA guidance for dairy and cut produce. For longer events, set the salad bowl in a larger bowl of ice and return leftovers to the refrigerator promptly. Discard any salad that has been above 40°F for longer than those limits.