There are recipes that feel like summer in a bowl, and this cucumber and onion salad is one of them. Maybe you’re coming inside from the garden with armfuls of cukes, or you’re pulling together something quick to balance a heavy weeknight meal — either way, this salad offers that clean, cooling bite that makes you sigh and take another forkful. It’s the kind of dish that’s humble but somehow essential: crisp, tangy, and endlessly adaptable.
If you’re wondering what protein to serve, Greek Turkey Meatballs are a light, herby choice that complements the cucumber and onion salad.

Why You’ll Love This Salad
What I love about this cucumber and onion salad is how little fuss delivers so much flavor. A few pantry staples — vinegar, a pinch of sugar, and salt — turn watery cucumbers and sharp red onion into something harmonious. The vinegar brightens, the sugar softens the edge of the onion, and a short rest lets the flavors marry without the cucumbers going limp. It’s great chilled or at room temperature, and it plays nicely with grilled meats, bowls, or simply as a light snack.
Add a scoop of Honey Garlic Chicken Bowls to your plate for a warm, sticky protein that pairs perfectly with this salad.
Ingredients
Salad:
- 2 large cucumbers (English or Persian work best), thinly sliced
- 1 small red onion, thinly sliced
- Salt (about 1 teaspoon)
Dressing:
- 1/4 cup apple cider vinegar
- 2 tablespoons water
- 1 tablespoon granulated sugar (or honey)
- 1 tablespoon olive oil
- 1/2 teaspoon Dijon mustard (optional)
- Freshly ground black pepper, to taste
- 2 tablespoons chopped fresh dill or parsley (optional)
Optional add-ins
crumbled feta, cherry tomatoes halved, thinly sliced radish, or toasted sunflower seeds for crunch.
How to Make Cucumber and Onion Salad
Follow these simple steps for a salad that stays crisp and bright.
- Slice thinly and salt
Use a sharp knife or a mandoline to slice the cucumbers and red onion as thinly as possible. Toss them in a bowl with about 1 teaspoon of salt and let sit for 10 minutes. The salt draws out excess water from the cucumbers and mellows the onion’s bite.
- Make the dressing
While the cucumbers rest, whisk together the vinegar, water, sugar, olive oil, and Dijon (if using). Taste and adjust: if the dressing feels too sharp, add a little more sugar or a touch more oil. Freshly cracked pepper and chopped dill stirred in at the end bring everything together.
- Drain and combine
After the cucumbers and onion have sweated, gently squeeze or drain off the liquid (save it if you like a looser dressing). Toss the vegetables with the dressing and refrigerate for at least 10–15 minutes so the flavors blend. Taste before serving and adjust salt, pepper, or acidity as needed.
Quick tips while you cook
- If you’re in a hurry, skip the resting step and toss everything together — still delicious, just a touch less mellow.
- To keep the cucumber extra crisp, remove seeds from large garden cucumbers or use English/Persian cucumbers.
- A mandoline will give perfectly uniform slices, but be careful and use the guard — thin slices transform the texture.

FAQs
Yes — make it up to a day ahead. Keep it chilled and, if possible, drain off any excess liquid before serving so it doesn’t water down other dishes.
Salt draws moisture, which is why you rest and then drain. If you drain well, the texture stays satisfyingly crisp rather than soggy.
This salad is a natural match for grilled or saucy mains. Try it with grilled chicken or a bowl for contrast — it brightens heavier dishes wonderfully.
If you’re wondering what protein to serve, Greek Turkey Meatballs are a light, herby choice that complements the cucumber and onion salad.
Conclusion
Once you get the hang of the basic salt-and-vinegar balance, this cucumber and onion salad becomes one of those go-to recipes you make without thinking. It’s forgiving, quick, and refreshing — perfect for weeknights, potlucks, and summer cookouts. Try adding feta or cherry tomatoes for variety, or serve it alongside a warm bowl to create contrast on the plate. For a bright seaside-style meal, pair it with grilled seafood and a simple grain; the crisp acidity will be irresistible.
Happy cooking — and don’t be surprised if you find yourself reaching for the cucumbers at every market trip this summer. Serve the salad alongside a Teriyaki Chicken Rice Bowl to balance the bright acidity with rich, savory flavors.

Cucumber and Onion Salad
Ingredients
Salad
- 2 English cucumbers or Persian, thinly sliced
- 1 small red onion thinly sliced
- 1 tsp salt
Dressing
- ¼ cup apple cider vinegar
- 2 tbsp water
- 1 tbsp granulated sugar or honey
- 1 tbsp olive oil
- ½ tsp Dijon mustard optional
- Freshly ground black pepper to taste
- 2 tbsp chopped fresh dill or parsley, optional
Optional add-ins
Instructions
- Thinly slice the cucumbers and red onion. Toss with 1 teaspoon salt and let sit for 10 minutes to draw out excess moisture.
- Whisk together the vinegar, water, sugar (or honey), olive oil, and Dijon if using. Add pepper and chopped herbs if desired. Taste and adjust.
- Drain or gently squeeze off the liquid from the cucumbers and onion. Toss with the dressing and chill for 10–15 minutes before serving. Adjust seasoning as needed.
- Serve chilled or at room temperature. Add optional feta or seeds just before serving to maintain texture.
Notes
- Make up to 24 hours ahead; drain excess liquid before serving to prevent watering down other dishes.
- Use English or Persian cucumbers for the best texture; remove seeds from large garden cucumbers if they’re watery.
- Swap sugar for honey or use rice vinegar for a milder flavor.
- For paper-thin slices, use a mandoline and the safety guard.






