Creamy Cucumber & Tomato Salad Recipe

Prep Time: 15 minutes (plus 30 minutes chilling) | Cook Time: 0 minutes | Total Time: 45 minutes
Skill Level: Extremely Easy | Serves: 6 as a side | Cost: $

This Creamy Cucumber & Tomato Salad is the quintessential dish of summer, offering a cool, crisp, and utterly refreshing counterpoint to grilled meats and sunny afternoons. More than just a side, it’s a vibrant celebration of peak-season produce, united by a luxuriously simple, herb-flecked dressing. The magic lies in the harmony of textures and tastes: the juicy burst of ripe tomatoes, the cool crunch of crisp cucumber, and the mellow bite of red onion, all coated in a tangy, creamy embrace. It’s a no-cook recipe that comes together in minutes, yet its flavor deepens beautifully as it chills, making it the perfect make-ahead dish for picnics, potlucks, and backyard barbecues.

Ingredients

For the Salad:

2 large English cucumbers (or 4 small garden cucumbers), about 1 ½ lbs total
1 pint (about 1 lb) cherry or grape tomatoes, halved
½ medium red onion, thinly sliced
1 teaspoon kosher salt, divided

For the Creamy Herb Dressing:

¾ cup (180g) full-fat sour cream
2 tablespoons mayonnaise
2 tablespoons white wine vinegar or apple cider vinegar
1 tablespoon fresh lemon juice
1 tablespoon extra virgin olive oil
1 large clove garlic, minced or finely grated
2 tablespoons finely chopped fresh dill
2 tablespoons finely chopped fresh chives or parsley
½ teaspoon freshly ground black pepper
¼ teaspoon granulated sugar (optional, balances acidity)

Equipment

Sharp knife & cutting board
Mandoline slicer (optional, for uniform cucumber slices)
Mixing bowls (one medium, one large)
Whisk
Colander
Clean kitchen towel or paper towels

Instructions

1. Prep the Cucumbers (The Crucial Crispness Step)

Wash the cucumbers. If using English cucumbers, you can leave the thin skin on for color and nutrients. If using garden cucumbers with thicker, waxed skin, it’s best to peel them. Slice the cucumbers into ¼-inch thick rounds.
Place the cucumber slices in a colander set over a bowl or in the sink. Toss with ½ teaspoon of the kosher salt. Let them sit for 15-20 minutes. This process, called “sweating,” draws out excess water, preventing a watery, diluted dressing and ensuring your salad stays crisp for hours.

2. Prepare the Remaining Veggies

While the cucumbers sweat, halve the cherry tomatoes. Thinly slice the red onion. For a milder onion flavor, you can soak the slices in a bowl of ice water for 10 minutes, then drain and pat dry.

3. Make the Creamy Herb Dressing

In a medium bowl, whisk together the sour cream, mayonnaise, vinegar, lemon juice, and olive oil until smooth and emulsified. Whisk in the minced garlic, chopped dill, chives, the remaining ½ teaspoon salt, black pepper, and sugar (if using). Taste and adjust seasoning—you may want more herbs, vinegar for tang, or salt.

4. Combine & Chill

After sweating, use your hands or a clean kitchen towel to gently squeeze the cucumber slices and pat them dry, removing as much moisture as possible. This is the secret to a creamy, not watery, salad.
In a large serving bowl, combine the dried cucumbers, halved tomatoes, and sliced red onion. Pour the creamy dressing over the top.
Using a large spoon or spatula, gently fold everything together until the vegetables are evenly and lovingly coated. Be gentle to avoid crushing the tomatoes.

5. The Resting Period (Where Flavor Develops)

Cover the bowl tightly with plastic wrap or a lid. Refrigerate for at least 30 minutes, ideally 1-2 hours. This chilling time allows the flavors to marry, the onions to mellow, and the dressing to permeate every nook and cranny. Give it one final gentle stir before serving.

Chef’s Secrets & Variations

Cucumber Choice: English (hothouse) cucumbers are ideal—they have fewer seeds and thinner skin. For regular cucumbers, scoop out the watery seed core with a spoon after halving lengthwise.
Herb Flexibility: Dill is classic, but tarragon, basil, or mint make wonderful variations. Use 3-4 tablespoons total of your chosen soft herbs.
Creamy Base Swap: For a lighter dressing, substitute Greek yogurt for half or all of the sour cream. The result will be tangier and slightly less rich.
Add-Ins for a Heartier Salad: Transform this side into a light main by adding 1 cup of cooked, cooled pasta shells, 1 can of drained chickpeas, or ½ cup of crumbled feta cheese.
Make it Zesty: Add a teaspoon of lemon zest to the dressing for a bright, aromatic punch.
The Garlic Trick: For a smooth, pervasive garlic flavor without any sharp bits, use a microplane to grate the garlic clove directly into the dressing.

Serving & Storage

Serving: This salad shines as the perfect chilled side. Serve it alongside grilled chicken, salmon, burgers, or bratwurst. Spoon it over a bed of greens for a quick lunch, or enjoy it straight from the bowl with a piece of crusty bread to sop up every last drop of the dressing.

Storage: Store leftovers in an airtight container in the refrigerator. Due to the vegetables continuing to release water, it is best enjoyed within 24 hours. The salad will still taste good on day two but will become more liquid. You can drain off excess liquid and give it a fresh sprinkle of herbs before serving.

The Last Bite: More Than a Salad

This Creamy Cucumber & Tomato Salad is a lesson in simplicity and respect for ingredients. It requires no technical skill, only a little patience for salting and chilling. In that waiting time, something wonderful happens. The sharp edges of onion and garlic soften, the herbs infuse their fragrance into the cream, and the vegetables relax into the dressing. It’s a dish that tastes of sunlight and gardens, of slow afternoons and shared meals. It proves that the most memorable recipes are often those that do the least to perfect produce, simply allowing it to be its most vibrant, refreshed, and delicious self.

Nutrition Information