Looking for a crisp, tangy, and refreshing cucumber and red onion salad that pairs perfectly with summer meals? This light and flavorful salad brings together crunchy cucumbers, mildly pickled red onions, and aromatic fresh herbs to create a side dish that’s as easy to make as it is delicious.
For a heartier, protein-packed experience, try my Curry Chicken Salad – it’s creamy, flavorful, and completely satisfying.
Whether you’re preparing it for a backyard barbecue, a picnic, or just a simple weekday meal, this salad is guaranteed to become a favorite.
Why You’ll Love This Cucumber Red Onion Salad
- Quick & Easy: Takes under 20 minutes to prepare.
- Healthy & Hydrating: Cucumbers are 90% water, making this a cooling and refreshing dish.
- Perfect Balance of Flavors: The combination of crisp cucumbers, sweet-tangy pickled onions, and fresh herbs creates a vibrant taste experience.
- Versatile Side Dish: Pairs well with grilled chicken, seafood, Mediterranean meals, or sandwiches.
- Customizable: Add feta cheese, cherry tomatoes, or chickpeas for extra texture and nutrition.
What You Need to Make This Cucumber Red Onion Salad
Zesty Dressing Ingredients:
- White or apple cider vinegar, ½ cup
- Fresh water, ¼ cup
- Granulated sugar, ⅓ cup
- Fine salt, 1¼ teaspoon
- Ground black pepper, ½ teaspoon
Crunchy Salad Ingredients:
- Large English cucumbers, 2, thinly sliced
- Small red onion, 1, finely sliced
- Fresh mint leaves, 3 tablespoons, chopped
- A handful of fresh dill, ¼ cup, roughly chopped
Step-by-Step: How to Make Cucumber Red Onion Salad

1. Prepare the Dressing For Cucumber Red Onion Salad
- In a medium pot, combine vinegar and water.
- Stir in sugar and place over medium-high heat.
- Stir occasionally until the sugar fully dissolves, then remove from heat and set aside.
2. Pickle the Onions
- Slice the red onion thinly into rings.
- Place the slices into the warm vinegar mixture, ensuring they are well-coated.
- Let them sit while you prepare the cucumbers to absorb the tangy flavor.

3. Prepare the Cucumbers
- If desired, peel strips from the cucumbers for a decorative effect.
- Slice them into thin rounds and place in a large mixing bowl.
- Sprinkle with salt and toss to distribute evenly.
- Cover the bowl and let the cucumbers sit in the fridge for 30-40 minutes to release excess moisture.

4. Assemble the Salad
- Drain any liquid released by the cucumbers.
- Chop the fresh dill and mint.
- Pour the pickled onions and dressing over the cucumbers.
- Sprinkle with the chopped herbs and toss everything gently to combine.
5. Chill & Serve The Cucumber Red Onion Salad
- Allow the salad to rest for at least 30 minutes in the fridge to enhance the flavors.
- Serve cold as a refreshing, flavorful side dish.
How Long Does Cucumber Salad Last?
Cucumber and red onion salad stays fresh for 2-3 days in the refrigerator when stored in an airtight container. To keep it crisp:
- Drain any excess liquid before storing.
- If the salad becomes too watery, simply toss it again before serving.
- Avoid adding too much dressing upfront if you plan to store it longer.
Expert Tips for the Best Cucumber Red Onion Salad
- Use English Cucumbers: They have thinner skin and fewer seeds, making them perfect for this salad.
- Salt the Cucumbers First: This prevents excess water from diluting the dressing.
- Marinate the Onions: Let them sit in the vinegar mixture for at least 15 minutes to reduce sharpness.
- Chill Before Serving: The flavors develop better when the salad is cold.
- Pairing Ideas: Serve with grilled chicken, shrimp tacos, or fresh pita bread.
FAQs: People Also Ask
Q: Can I use different types of onions?
A: Yes; While red onions provide the best color and mild flavor, shallots or sweet onions are good alternatives.
Q: Can I make this salad ahead of time?
A: Absolutely; This salad actually tastes better after sitting for a few hours. If making in advance, drain excess liquid before serving to keep it crisp.
Q: What can I add to make this salad more filling?
A: Try adding feta cheese, cherry tomatoes, chickpeas, or avocado for more texture and nutrients.
Q: Can I use a different vinegar?
A: Yes; Apple cider vinegar, rice vinegar, or champagne vinegar all work well as substitutes.

This cucumber and red onion salad is a must-try for anyone who loves fresh, crisp, and flavorful dishes. The perfect balance of pickled onions, cucumbers, and fresh herbs makes it a refreshing side for any occasion. Whether you’re hosting a summer BBQ or just need a quick and healthy salad, this recipe is a winner.
Give this easy cucumber salad recipe a try and let us know how it turned out in the comments. If you loved it, share it with your friends and family, For more light and refreshing salad ideas, check out my other recipes and treat yourself to my Watergate Salad – it’s a creamy, dreamy delight you won’t forget.
Print
Cucumber Red Onion Salad
- Total Time: 20 minutes
- Yield: 4 servings 1x
Description
This cucumber and red onion salad is crisp, cool, and tangy, perfect for summer gatherings or as a quick, refreshing side. The light pickling and fresh herbs bring everything together beautifully.
Ingredients
- ½ cup white or apple cider vinegar
- ¼ cup water
- ⅓ cup granulated sugar
- 1¼ teaspoon fine salt
- ½ teaspoon ground black pepper
- 2 large English cucumbers, thinly sliced
- 1 small red onion, finely sliced
- 3 tablespoons fresh mint leaves, chopped
- ¼ cup fresh dill, roughly chopped
Instructions
- In a medium saucepan, mix vinegar and water, add sugar and heat over medium-high, stirring until sugar dissolves. Remove from heat.
- Slice red onion into thin rings and place into the warm vinegar mixture. Let sit while preparing the cucumbers.
- Optionally peel decorative strips off the cucumbers, slice into thin rounds, and place in a bowl. Sprinkle with salt and toss. Refrigerate 30-40 minutes to draw out moisture.
- Drain cucumbers. Chop dill and mint. Add onions and dressing to cucumbers, sprinkle herbs, and gently toss everything together.
- Refrigerate salad for at least 30 minutes before serving to deepen flavors. Serve cold.
Notes
To keep the salad fresh for up to 3 days, store in an airtight container and drain any excess liquid before serving again. English cucumbers are best for this recipe due to their thin skin and minimal seeds.
- Prep Time: 15 minutes
- Cook Time: 5 minutes
- Category: Salad
- Method: No-Cook
- Cuisine: American
Nutrition
- Serving Size: 1 cup
- Calories: 70
- Sugar: 6g
- Sodium: 300mg
- Fat: 0.5g
- Saturated Fat: 0g
- Unsaturated Fat: 0.5g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 1g
- Protein: 1g
- Cholesterol: 0mg
Keywords: cucumber salad, red onion, summer salad, fresh herbs, quick side