Cucumber and Onion Salad Recipe With Mayo: Crisp Veggies in Cool Creaminess

There’s something timeless about the crisp, refreshing combination of cucumbers and onions in a creamy dressing. This salad delivers a perfect balance of textures and flavors with minimal effort.

Thinly sliced cucumbers and onions soak up the tangy mayonnaise base, creating a dish that’s both cooling and satisfying. The key is letting it rest for at least 30 minutes to allow the flavors to meld beautifully.

What emerges is a salad with a delightful crunch and creamy richness in every bite. It’s the ideal side for picnics, barbecues, or as a light lunch on its own.

Simple ingredients, no-fuss preparation, and a result that always impresses. This is comfort food at its freshest.

Ingredients for Cucumber and Onion Salad Recipe with Mayo

Crisp cucumbers and onions meet a velvety dressing in this refreshing salad.

The cucumbers are non-negotiable—English or Persian varieties have fewer seeds and thinner skins, so no peeling required. Red onion gives the best color and mild bite, but white or yellow work too (soak slices in cold water for 10 minutes to mellow the sharpness). For the mayo, Hellmann’s or Duke’s are the gold standard. Sour cream adds a tangy note that cuts through the richness, so don’t skip it.

No dill? Fresh chives or tarragon add a similar bright note. Out of sour cream? Full-fat Greek yogurt works in a pinch, though the texture will be slightly thicker. For a lighter version, swap half the mayo for additional sour cream. The vinegar can be apple cider or rice vinegar if you prefer a milder acid. Sugar balances the tang, but honey or agave can substitute if needed.

This salad improves with time—let it rest at least 30 minutes before serving. Keeps in the fridge for 3-4 days, though the cucumbers may soften slightly. Store in an airtight container with a paper towel on top to absorb excess moisture. Best served chilled.

Step-by-Step Instructions for Cucumber and Onion Salad With Mayo

This method ensures the vegetables stay crisp while the dressing achieves perfect balance and creaminess.

Step 1: Prepare and Salt the Vegetables

Thinly slice the 2 whole English Cucumbers and 1 whole Red Onion as specified, then combine them in a large bowl. The cucumbers should be unpeeled for texture and color. Sprinkle with the 1 tsp Kosher Salt and toss gently to coat every surface.

Let the vegetables sit for 10-15 minutes. The salt draws out excess moisture, which would otherwise dilute the dressing and make the salad watery. You’ll notice liquid pooling at the bottom of the bowl—this is exactly what you want.

Step 2: Drain and Dry the Vegetables

After salting, transfer the cucumbers and onion to a colander and rinse briefly under cold water. This removes the excess salt while retaining the crisp texture. Gently pat them dry with a clean kitchen towel or paper towels.

Return the vegetables to the bowl. They should now be slightly less rigid but still maintain a satisfying crunch. This step prevents a soggy salad and ensures the dressing clings properly to the slices.

Step 3: Whisk Together the Creamy Dressing

In a medium bowl, combine the 0.75 cup Mayonnaise, 0.5 cup Sour Cream, 2 tbsp White Vinegar, 1 tbsp Granulated Sugar, 1 tbsp Dijon Mustard, 0.5 tsp Black Pepper, and 1 tbsp Lemon Juice. Use full-fat mayonnaise for the richest texture.

Whisk vigorously until the mixture is smooth and fully emulsified. The vinegar and lemon juice cut through the richness of the mayo and sour cream, while the sugar balances the acidity. Taste and adjust the Granulated Sugar if you prefer a sweeter dressing.

Step 4: Combine and Chill for Optimal Flavor

Pour the dressing over the prepared vegetables. Add the 2 tbsp Fresh Dill and fold everything together gently with a silicone spatula. The dill adds a bright, herbal note that complements the cool creaminess of the dressing.

Cover the bowl and refrigerate for at least 1 hour. This chilling time allows the flavors to meld and the vegetables to absorb the dressing slightly. The salad will taste even better after 2-3 hours in the fridge.

Step 5: Garnish and Serve

Just before serving, sprinkle the 2 tbsp Fresh Parsley over the top for a pop of color and a subtle fresh flavor. The parsley should be chopped finely for even distribution.

Give the salad one final gentle toss to incorporate the parsley. Serve chilled in a shallow bowl to showcase the vibrant colors and creamy dressing. This dish pairs well with grilled proteins or as a refreshing standalone side.

Regional Styles of These Flavors

Southern Style

In the South, this salad often includes 1 tsp celery seeds for extra crunch and earthy flavor. I love adding ½ cup diced bell peppers for color and sweetness. The dressing stays simple—just mayo, vinegar, and a touch of black pepper. 💛

Midwestern Picnic

Midwestern versions tend to be sweeter, with 2 tbsp apple cider vinegar replacing white vinegar and 1 extra tbsp sugar. Some even add ½ cup shredded carrots for texture. The result is a crowd-pleaser at summer gatherings.

Appalachian Twist

Appalachian cooks often use buttermilk ranch instead of mayo for a tangier dressing. I’ve seen recipes with 1 cup crushed tomatoes mixed in for a unique, slightly sweet variation. It’s a refreshing take on this classic.

New England Classic

New England versions keep it light with Greek yogurt instead of sour cream. A sprinkle of fresh chives replaces dill for a milder herb note. The texture stays creamy, but with a brighter finish.

Amish Tradition

Amish communities often skip the mayo entirely, using a sugar-vinegar dressing with 3 tbsp oil. The salad is lighter but still packed with flavor. I appreciate the simplicity of this approach. 🌟

Frequently Asked Questions