Easy Cucumber Onion Salad Recipe

This cucumber onion salad has become an absolute staple in our home, especially during the warmer months. There’s something so incredibly refreshing about the crisp cucumbers and the sharp bite of red onion, all bathed in a light and tangy dressing. It’s the kind of salad that disappears quickly at potlucks and barbecues, and even my kids, who can be picky eaters, ask for seconds. What I love most is its simplicity – with just a handful of ingredients and minimal effort, you can create a side dish that’s bursting with flavor and perfect for complementing almost any meal. It’s a testament to how simple ingredients, when combined just right, can create something truly special. This recipe isn’t just easy; it’s reliably delicious every single time.

Ingredients

The beauty of this cucumber onion salad lies in its short and sweet ingredient list. Each component plays a crucial role in creating the refreshing and flavorful final dish. Let’s break down each ingredient and discuss why they are essential and potential variations you might consider.

• Cucumbers: The star of the show! For this salad, you have a few cucumber options, each offering slightly different textures and flavors.
  • English Cucumbers (Hothouse Cucumbers): These are my go-to for this salad. They are long, thin-skinned, and virtually seedless, making them incredibly easy to prepare. You typically don’t need to peel them, and their mild flavor and crisp texture are perfect for this recipe. Their lower water content also means they won’t make the salad watery as quickly.
  • American Cucumbers (Slicing Cucumbers): These are the more common, thicker-skinned cucumbers you find in most grocery stores. They have larger seeds and a slightly thicker skin. If using these, I highly recommend peeling them, as the skin can be a bit bitter. You might also want to scoop out some of the seeds to prevent the salad from becoming too watery.
  • Persian Cucumbers: Smaller and often sold in packs, Persian cucumbers are also a great choice. They are similar to English cucumbers in that they have thin skin and are nearly seedless, but they are shorter and have a slightly sweeter flavor. They are wonderfully crisp and require minimal preparation.
  • Pickling Cucumbers (Kirby Cucumbers): While technically usable, pickling cucumbers are not ideal for this fresh salad. Their thicker skin and denser flesh are better suited for pickling. They can be used in a pinch, but the texture will be less delicate.
  Quantity: You’ll typically need about 2-3 medium cucumbers, or roughly 4 cups of sliced cucumbers, for a salad that serves 4-6 people. Adjust the quantity based on how many servings you need.
• Red Onion: The sharp, pungent bite of red onion is a critical counterpoint to the mild cucumber. Red onions offer a beautiful color contrast and a flavor that mellows slightly when marinated in the dressing.
  • Why Red Onion? Red onions are generally milder than yellow or white onions when eaten raw, making them a better choice for salads where they aren’t cooked. They also have a slightly sweeter flavor profile.
  • Alternatives: If you find red onions too strong, you can try soaking them in cold water for about 10-15 minutes after slicing. This will help to reduce their sharpness. Alternatively, you could use shallots for a milder, more delicate onion flavor, or even thinly sliced scallions (green onions) for a very subtle onion note.
  • Quantity: Half of a medium red onion, thinly sliced, is usually sufficient. Start with less if you are sensitive to onion flavor and add more to taste.
• Vinegar: The dressing’s tangy base is crucial for balancing the flavors and bringing everything together. Different vinegars will impart different flavor nuances.
  • White Vinegar: This is a classic choice for cucumber onion salad. It provides a clean, sharp tang that is refreshing and bright. It’s readily available and works wonderfully in this simple recipe.
  • Apple Cider Vinegar: Offers a slightly milder, fruitier tang than white vinegar. It adds a touch of sweetness and complexity to the dressing. This is a great option if you prefer a less assertive vinegar flavor.
  • Red Wine Vinegar: Adds a bolder, more robust flavor with a hint of fruitiness. It can be a bit more intense than white or apple cider vinegar, so use it sparingly at first and adjust to taste.
  • Rice Vinegar: For a more delicate and slightly sweet flavor, rice vinegar is an excellent choice. It’s less acidic than other vinegars and provides a subtle tang that complements the cucumbers and onions beautifully.
  • Balsamic Vinegar (White Balsamic Preferred): While traditional balsamic vinegar is too dark and sweet for this bright salad, white balsamic vinegar can be a fantastic option. It offers a mellow sweetness and a subtle tang without discoloring the salad.
  Quantity: Start with about 2-3 tablespoons of vinegar and adjust to your preference. Remember, you can always add more, but you can’t take it away!
• Sugar (or Sweetener): A touch of sweetness balances the vinegar’s acidity and enhances the overall flavor profile.
  • Granulated Sugar: The most common and readily available sweetener. A small amount is all you need to round out the flavors.
  • Honey or Maple Syrup: For a natural sweetener, honey or maple syrup work beautifully. They add a subtle depth of flavor in addition to sweetness. Start with a teaspoon and adjust to taste.
  • Agave Nectar: Another liquid sweetener option, agave nectar dissolves easily and provides a clean sweetness.
  • Sugar Alternatives (Stevia, Erythritol, etc.): If you are watching your sugar intake, you can use sugar substitutes like stevia or erythritol. Use sparingly, as they are much sweeter than sugar.
  Quantity: Start with 1-2 teaspoons of sugar (or equivalent sweetener) and adjust to your taste.
• Salt and Black Pepper: Essential seasonings to enhance all the flavors.
  • Salt: Use kosher salt or sea salt for the best flavor. Salt not only seasons the salad but also helps to draw out some of the moisture from the cucumbers and onions, which helps them soften slightly and absorb the dressing.
  • Black Pepper: Freshly ground black pepper is always preferred for its brighter, more aromatic flavor.
  Quantity: Start with about ½ teaspoon of salt and ¼ teaspoon of black pepper, and adjust to taste. Seasoning is crucial, so taste as you go!
• Optional Ingredients (For Variations and Enhancements):
  • Fresh Dill: Chopped fresh dill adds a classic herbaceous note that pairs perfectly with cucumbers.
  • Fresh Parsley: Chopped fresh parsley offers a milder, slightly peppery freshness.
  • Garlic: A minced clove of garlic can add a subtle savory depth to the dressing. Use sparingly, as garlic can be overpowering.
  • Red Pepper Flakes: For a touch of heat, a pinch of red pepper flakes can add a pleasant kick.
  • Olive Oil: A drizzle of good quality olive oil can add richness and depth to the dressing, especially if using a less acidic vinegar like rice vinegar. Start with a teaspoon or two.
  • Sour Cream or Greek Yogurt: For a creamy variation, a tablespoon or two of sour cream or Greek yogurt can be whisked into the dressing to add richness and tang.

Instructions

Making this Easy Cucumber Onion Salad is incredibly straightforward. Follow these simple step-by-step instructions to create a refreshing and delicious side dish.

1. Prepare the Cucumbers: Begin by washing your cucumbers thoroughly. Decide whether you want to peel them or not, based on the type of cucumber you are using and your personal preference. For English or Persian cucumbers, peeling is usually unnecessary. For American cucumbers, peeling is recommended.
   • Slicing: Thinly slice the cucumbers. You can use a mandoline for perfectly uniform slices if you have one, but a sharp knife works just as well. Aim for slices that are about ⅛ to ¼ inch thick. Slicing them thinly allows them to absorb the dressing flavors better and gives the salad a more delicate texture.
   • Removing Seeds (Optional): If using American cucumbers, you may want to cut them lengthwise and gently scoop out the seeds with a spoon. This will help prevent the salad from becoming too watery.
2. Prepare the Red Onion: Peel and thinly slice the red onion. For the best texture and flavor, aim for very thin slices. You can slice them into half-moons or even julienne strips, depending on your preference.
   • Mellowing the Onion (Optional): If you find red onions too pungent, you can soak the sliced onions in a bowl of ice water for 10-15 minutes. This helps to take away some of the harshness and make them milder. Drain them thoroughly before adding them to the salad.
3. Combine Vegetables in a Bowl: Place the sliced cucumbers and red onion in a medium to large mixing bowl. Make sure you have enough space to toss the salad comfortably.
4. Prepare the Dressing: In a separate small bowl, whisk together the vinegar, sugar (or chosen sweetener), salt, and black pepper. Whisk until the sugar and salt are fully dissolved. Taste the dressing at this point and adjust the seasonings to your liking. You might want to add a little more vinegar for extra tang, or a touch more sugar for sweetness, or salt and pepper to taste.
   • Adding Optional Ingredients to Dressing: If you are using any optional ingredients like minced garlic, red pepper flakes, fresh dill, or parsley, add them to the dressing at this stage and whisk to combine.
5. Pour Dressing Over Vegetables: Pour the prepared dressing evenly over the cucumbers and onions in the bowl.
6. Toss to Combine: Gently toss the cucumbers and onions with the dressing until everything is well coated. Be careful not to over-mix, as you don’t want to bruise the cucumbers. A gentle toss is sufficient.
7. Marinate (Recommended): For the best flavor, allow the salad to marinate in the refrigerator for at least 30 minutes. This allows the flavors to meld together and the cucumbers and onions to soften slightly and absorb the dressing. You can marinate it for up to 2-3 hours for even better flavor. If you are short on time, even 15-20 minutes of marinating will make a difference.
8. Taste and Adjust Seasoning (Final Step): Before serving, give the salad a final toss and taste it again. Adjust the seasoning if needed. You might want to add a pinch more salt, pepper, or even a splash more vinegar depending on your taste.
9. Serve and Enjoy: Your Easy Cucumber Onion Salad is now ready to serve! It’s best served chilled. Garnish with a sprinkle of fresh dill or parsley, if desired, for a final touch of freshness.

Nutrition Facts

(Approximate values per serving – Note: Nutritional values can vary based on specific ingredients and serving sizes)

Servings: Approximately 6 servings

Calories per Serving: Approximately 50-70 calories

Approximate Nutritional Breakdown per Serving:

• Calories: 50-70 kcal
• Carbohydrates: 8-10 grams
  • Sugars: 5-7 grams (from added sugar and natural sugars in vegetables)
  • Fiber: 1-2 grams
• Fat: 0-1 gram (negligible, unless olive oil is added)
• Protein: Less than 1 gram
• Sodium: Varies depending on salt added, approximately 100-200mg
• Vitamins & Minerals: Cucumber and onion provide some Vitamin K, Vitamin C, Potassium, and small amounts of other vitamins and minerals. The exact amounts will vary.

Important Notes on Nutrition:

• This salad is naturally low in calories and fat, making it a healthy side dish option.
• It’s a good source of hydration due to the high water content of cucumbers.
• The nutritional value can be slightly enhanced by adding fresh herbs like dill or parsley, which contribute vitamins and antioxidants.
• Be mindful of added sugar if you are watching your sugar intake. You can reduce the sugar or use a sugar alternative.
• The sodium content will depend on how much salt you add. Use salt judiciously, especially if you are on a low-sodium diet.

For more precise nutritional information, especially if you are following a specific diet, you can use online nutrition calculators and input the exact quantities of ingredients you use.

Preparation Time

• Prep Time: 15-20 minutes (includes washing, slicing vegetables, and making the dressing)
• Marinating Time: Minimum 30 minutes (up to 2-3 hours recommended for optimal flavor)
• Total Time: 45 minutes to 2 hours 20 minutes (including marinating)

Quick Breakdown:

• Fastest Possible: If you are in a hurry, you can skip or shorten the marinating time and serve the salad immediately after preparing. It will still be tasty, but the flavors will be more pronounced and less melded.
• Recommended Time: For the best balance of flavor and texture, plan for at least 30 minutes to 1 hour of marinating time.
• Make-Ahead Option: You can prepare this salad up to 2-3 hours in advance and store it in the refrigerator. In fact, the flavor often improves as it marinates. However, be aware that the cucumbers might release more water the longer it sits, so you might need to drain off a little excess liquid before serving if it becomes too watery. It is generally best consumed within 4-6 hours of preparation for optimal crispness.

How to Serve

This Easy Cucumber Onion Salad is incredibly versatile and pairs well with a wide variety of dishes. Here are some serving suggestions:

• Barbecues and Cookouts:
  • Perfect side dish for grilled meats like burgers, chicken, steak, and ribs.
  • Complements BBQ pulled pork or brisket sandwiches.
  • A refreshing counterpoint to heavier BBQ fare like potato salad and coleslaw.
• Picnics and Potlucks:
  • Travels well and is a crowd-pleaser at picnics and potlucks.
  • Light and refreshing option for warm weather gatherings.
• Alongside Main Courses:
  • Excellent side for fish and seafood dishes, such as grilled salmon, baked cod, or shrimp scampi.
  • Pairs beautifully with chicken dishes, roasted chicken, or pan-fried chicken cutlets.
  • A great accompaniment to vegetarian meals, like lentil loaf, veggie burgers, or grilled halloumi.
  • Serve with sandwiches and wraps for a light and fresh lunch or dinner.
• As a Light Lunch or Snack:
  • Enjoy a bowl of cucumber onion salad on its own as a light and healthy lunch, especially on hot days.
  • Pair it with a piece of crusty bread or crackers for a simple snack.
• Garnishes and Serving Tips:
  • Garnish with fresh dill or parsley sprigs for added visual appeal and freshness.
  • Serve chilled for the most refreshing taste.
  • If the salad has released some water during marinating, you can gently drain off some of the excess liquid before serving, if desired.
  • For a more substantial salad, consider adding crumbled feta cheese or a dollop of Greek yogurt just before serving.

Additional Tips

Here are five helpful tips to elevate your Easy Cucumber Onion Salad and make it even better:

1. Salt Your Cucumbers (Optional but Recommended for Crispness): For extra crisp cucumbers, you can lightly salt the sliced cucumbers and onions in a colander and let them sit for about 15-20 minutes before adding the dressing. This draws out some of the excess moisture. Rinse them briefly under cold water and pat them dry with paper towels before proceeding with the recipe. This step is particularly useful if you are using American cucumbers or if you plan to make the salad ahead of time.
2. Thinly Slice for Best Texture: The key to a great cucumber onion salad is thinly sliced vegetables. Thin slices allow the dressing to penetrate better and create a more delicate and pleasant texture. Use a sharp knife or a mandoline for uniform slices. Thinly sliced red onion also becomes less overpowering and blends more seamlessly with the cucumbers.
3. Adjust Sweetness and Tang to Your Preference: The beauty of this recipe is its adaptability. Taste the dressing before pouring it over the vegetables and adjust the sweetness and tang to your liking. If you prefer a sweeter salad, add a little more sugar or honey. If you like it tangier, add a splash more vinegar. Don’t be afraid to experiment to find your perfect balance.
4. Don’t Over-Marinate (If You Want Maximum Crispness): While marinating is important for flavor, over-marinating can make the cucumbers lose their crispness. For the crispiest salad, aim for a marinating time of 30 minutes to 1 hour. If you are preparing it further in advance, consider adding the dressing closer to serving time, or keep the dressing and vegetables separate and combine them just before serving.
5. Get Creative with Variations: Once you master the basic recipe, feel free to experiment with variations. Try adding different herbs like mint or chives. Incorporate other vegetables like bell peppers or tomatoes. Add a creamy element with sour cream or Greek yogurt. A sprinkle of feta cheese or olives can add a salty, briny dimension. Consider a different dressing base – lemon juice instead of vinegar for a brighter citrusy flavor. The possibilities are endless!

FAQ Section

Here are five frequently asked questions about making Easy Cucumber Onion Salad:

Q1: Can I make this salad ahead of time?

A: Yes, you can definitely make this salad ahead of time! In fact, marinating it for at least 30 minutes (and up to 2-3 hours) is recommended for the best flavor. However, keep in mind that the cucumbers might release some water as they sit. For optimal crispness, it’s best to consume it within 4-6 hours of preparation. If making it further in advance, you can drain off any excess liquid before serving. Alternatively, you can prepare the vegetables and dressing separately and combine them closer to serving time to maintain maximum crispness.

Q2: I don’t have red onion, can I use another type of onion?

A: Yes, you can substitute red onion with other types of onions. Shallots are a great milder alternative that provides a delicate onion flavor. White or yellow onions can also be used, but they are generally stronger in flavor. If using yellow or white onion, you might want to soak them in ice water for a bit longer to mellow their sharpness. Scallions (green onions) can also be used for a very mild onion flavor.

Q3: Can I add other vegetables to this salad?

A: Absolutely! This salad is very versatile, and you can easily add other vegetables to customize it to your liking. Some great additions include:
* Sliced bell peppers (red, yellow, or green) for color and crunch.
* Cherry tomatoes or grape tomatoes, halved or quartered, for sweetness and juiciness.
* Radishes, thinly sliced, for a peppery bite.
* Carrots, julienned or thinly sliced, for sweetness and crunch.
* Avocado, diced, for creaminess (add just before serving as avocado can brown).

Q4: What can I do if my salad becomes too watery?

A: Cucumbers naturally have high water content, so some water release is normal. To minimize this, you can:
* Use English or Persian cucumbers, which have less water content.
* Remove the seeds from American cucumbers.
* Salt the sliced cucumbers and onions and let them drain in a colander before adding dressing (as mentioned in the tips).
* If the salad becomes watery after marinating, you can gently drain off some of the excess liquid before serving.

Q5: Can I make this salad creamy?

A: Yes, you can easily make a creamy version of this cucumber onion salad! To make it creamy, whisk 1-2 tablespoons of sour cream, Greek yogurt, or even mayonnaise into the dressing. Start with a smaller amount and add more to reach your desired creaminess. Creamy versions are delicious and offer a different texture and flavor profile. Adding a bit of fresh dill to a creamy version is particularly delightful.

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