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Cucumber Onion Salad is crisp, cool, and easy to throw together when dinner needs something fresh on the side. Thin-sliced cucumbers and red onion get tossed in a simple vinegar dressing that adds just enough tang, a little sweetness, and a clean finish that works especially well with warm mains.
This is the kind of salad that works with everything from grilled chicken to salmon to bowl meals. It’s especially good next to richer dishes like Lemon Garlic Chicken Thighs or Blackened Salmon, and it also works well with Buffalo Chicken Bowls when you want something cool and crisp to balance the heat.
Why You’ll Want to Make This Cucumber Onion Salad
- It comes together fast: Once the cucumbers and onion are sliced, the rest takes just a few minutes.
- It tastes fresh and light: The vinegar dressing keeps the salad bright, and the cucumbers give it that crisp texture that makes it really nice next to heavier dishes.
- It is easy to pair with dinner: I make this when dinner needs something cold, crunchy, and simple on the side, especially with richer mains or anything a little spicy.
What You’ll Need
This salad uses a short ingredient list, so the details matter.
- Mini cucumbers: Mini cucumbers are a great fit here because they have thinner skin, fewer seeds, and a crisp texture that holds up well in the dressing. You might find them in the store as Persian Cucumbers or Baby Cucumbers too.
- Red onion: Slice it very thin so it brings some sharpness without taking over the whole salad.
- Rice vinegar: This gives the dressing a lighter, cleaner tang that works especially well with cucumbers.
- Olive oil: Softens the vinegar a bit and helps the dressing coat the vegetables more evenly.
- Honey or sweetener: A small amount balances the vinegar and rounds out the dressing.
- Sea salt and black pepper: These help pull the dressing together and keep the salad from tasting flat.
- Fresh dill: Optional, but it adds a fresh, herby finish that fits naturally here.
How to Make Cucumber Onion Salad
Use the step-by-step photos as your guide here. This recipe is mostly about slicing everything thinly and giving the dressing a few minutes to work its way through the vegetables.
Slice the vegetables thinly
Thin cucumber rounds and very thin red onion slices give the salad the best texture. They also help the dressing coat everything more evenly instead of collecting in the bottom of the bowl.
Mix the dressing separately
Whisk the vinegar, olive oil, honey, salt, and pepper together in a small bowl first. That makes it easier to balance the flavor before adding it to the cucumbers and onion.
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Toss and let it sit briefly
You can serve the salad right away, but it tastes even better after 10 to 15 minutes in the fridge. That short rest gives the cucumbers and onion time to pick up more flavor while still staying crisp.
Tips That Help This Salad Turn Out Well
- Use mini cucumbers if you can: They stay crisper and bring less extra water to the bowl.
- Slice the onion very thin: That keeps the onion sharp but balanced instead of harsh.
- Chill it briefly before serving: Even a short rest helps the salad taste more pulled together.
- Adjust the dressing to taste: Add a little more honey if you want it softer, or a little more vinegar if you want a brighter finish.
- Serve it cold: This salad is best when it’s cool and fresh.
Easy Ways to Change It Up
- Use white vinegar or apple cider vinegar: The flavor changes a little, but both work if that’s what you have.
- Swap the dill: Chives or parsley also work if you want a different fresh herb.
- Add a little more sweetness: Helpful if your onion tastes especially sharp.
- Use regular cucumbers: They can work, but I’d scoop out some of the seeds if they’re very watery.
What to Serve With Cucumber Onion Salad
This salad is especially good when the rest of dinner is warm, savory, or a little rich.
- Lemon Garlic Chicken Thighs: The cool crunch works really well next to the buttery lemon-garlic sauce.
- Blackened Salmon: A fresh cucumber salad is a great contrast to salmon with a darker, more spiced crust.
- Seasoned Jasmine Rice: this rice side is versatile, balancing the flavor of this crisp cucumber salad and any main protein you serve with it.
FAQs
Most cucumber onion salads include sliced cucumbers, onion, vinegar, salt, and pepper. This version also uses olive oil, a little honey, and optional dill for a more balanced dressing.
Rice vinegar works really well if you want a lighter, cleaner flavor. White vinegar is more classic and sharper, while apple cider vinegar brings a slightly rounder taste.
Using mini cucumbers helps, and so does serving the salad soon after making it. After it sits longer, the cucumbers will naturally start releasing more water.
Yes, but it’s best the day you make it. You can make it a little ahead and chill it for 10 to 15 minutes, but after a full day the cucumbers soften more.
No. Dill adds a fresh, herby finish, but the salad still works without it.
Storage
Store leftovers in an airtight container in the refrigerator for up to 2 days. The cucumbers will soften some as they sit, so this salad is best earlier rather than later.
Cucumber Onion Salad
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Ingredients
- 6 Mini Cucumbers, thinly sliced, also called Persian or Baby Cucumbers
- ¼ Red Onion, very thinly sliced
- 2 tbsp Unseasoned Rice Vinegar
- 1 tbsp Olive Oil
- 1 tsp honey, or sweetener
- ½ tsp Natural Ancient Sea Salt
- ¼ tsp Black Pepper
- 1 tbsp Fresh dill, chopped, optional
Instructions
- Slice the mini cucumbers into thin rounds and place them in a mixing bowl.
- Add the thinly sliced red onion.
- Make the salad dressing: In a small bowl whisk together the rice vinegar, olive oil, honey, salt, and black pepper.
- Pour the dressing over the cucumbers and toss until evenly coated.
- Sprinkle with fresh dill and serve immediately, or refrigerate 10–15 minutes to allow the flavors to meld.
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Recipe Notes
- Mini cucumbers: Mini cucumbers are a great fit here because they have thinner skin, fewer seeds, and a crisp texture that holds up well in the dressing. You might find them in the store as Persian Cucumbers or Baby Cucumbers too.
- Red onion: Slice it very thin so it brings some sharpness without taking over the whole salad.
- Rice vinegar: This gives the dressing a lighter, cleaner tang that works especially well with cucumbers.
- Olive oil: Softens the vinegar a bit and helps the dressing coat the vegetables more evenly.
- Honey or sweetener: A small amount balances the vinegar and rounds out the dressing.
- Sea salt and black pepper: These help pull the dressing together and keep the salad from tasting flat.
- Fresh dill: Optional, but it adds a fresh, herby finish that fits naturally here.
Nutrition Details
The nutrition facts come from entering the recipe ingredients into a database of food ingredients. They may vary for any recipe based on the exact product used.
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