Cucumber Onion Salad with Mustard Vinaigrette

This refreshing Cucumber Onion Salad with Mustard Vinaigrette is a delightful mix of textures and flavors. Perfect for summer gatherings, picnics, or as a light lunch option, this salad features crisp cucumbers and zesty onions, all brought together by a tangy mustard vinaigrette. With its vibrant taste and easy preparation, it’s sure to become a favorite in your recipe collection.

Why You’ll Love This Recipe

• Easy to Prepare: This salad comes together quickly with minimal effort, making it perfect for busy days.
• Fresh and Flavorful: The combination of fresh herbs and the mustard vinaigrette adds a burst of flavor that elevates the dish.
• Versatile Side Dish: Ideal for any occasion, from casual barbecues to formal dinners, it pairs well with many main courses.
• Make-Ahead Friendly: Prepare it in advance and store it in the fridge for an easy grab-and-go side.
• Healthy Ingredients: Packed with fresh vegetables and wholesome ingredients, it’s a nutritious choice for any meal.

Tools and Preparation

To make this Cucumber Onion Salad with Mustard Vinaigrette, you’ll need some essential tools. Having the right equipment helps streamline the process and ensures great results.

Essential Tools and Equipment

• Salad spinner
• Small mixing bowl
• Large mixing bowl
• Colander
• Whisk

Importance of Each Tool

• Salad spinner: This tool helps dry your cucumbers quickly after salting, ensuring your salad doesn’t become soggy.
• Whisk: A whisk is essential for mixing the dressing smoothly so that all ingredients are well combined.

Ingredients

For the Salad

• 1 small red onion, halved lengthwise and thinly sliced
• 2 lb. Persian or English cucumbers, cut into ¼-thick rounds
• 2¼ tsp. kosher salt, divided (or more to taste)
• ⅓ cup chopped fresh dill
• ¼ cup thinly sliced chives

For the Dressing

• 2 Tbsp. extra-virgin olive oil
• 1 Tbsp. apple cider vinegar
• 1 Tbsp. fresh lemon juice
• 1 Tbsp. whole-grain mustard
• 1 tsp. honey
• ¼ tsp. black pepper
• ¼ tsp. crushed red pepper flakes, optional

How to Make Cucumber Onion Salad with Mustard Vinaigrette

Step 1: Soak the Onions

Place sliced red onions in a small bowl of ice water and let soak for 15 minutes. This softens their sharpness while keeping them crunchy.

Step 2: Salt the Cucumbers

In a salad spinner or colander set over a bowl, toss cucumbers with 2 teaspoons kosher salt. Let sit for about 15 minutes, tossing occasionally to draw out excess moisture.

Step 3: Make the Dressing

In a small mixing bowl, whisk together:
1. Olive oil
2. Apple cider vinegar
3. Lemon juice
4. Whole-grain mustard
5. Honey
6. Black pepper
7. Red pepper flakes (if using)
8. Remaining ¼ teaspoon salt until well combined.

Step 4: Assemble the Salad

Pat cucumbers dry or spin them in a salad spinner to remove excess water. Transfer them to a large bowl. Drain soaked onions and add them along with the dressing, dill, and chives.

Step 5: Toss and Let Sit

Toss everything together to coat evenly and let the salad sit for 15 minutes to absorb flavors. Taste and adjust salt if needed.

Step 6: Serve or Store

Serve chilled! This salad can be made up to 2 days in advance and stored in an airtight container in the refrigerator.

Enjoy this vibrant Cucumber Onion Salad with Mustard Vinaigrette at your next gathering!

How to Serve Cucumber Onion Salad with Mustard Vinaigrette

Cucumber Onion Salad with Mustard Vinaigrette is a versatile dish that pairs well with many meals. Here are some delicious serving suggestions to elevate your dining experience.

As a Light Lunch

• Serve chilled in individual bowls for a refreshing meal.
• Add grilled chicken or chickpeas for added protein.

At Summer Barbecues

• Present the salad in a large bowl for easy sharing.
• Pair it with grilled meats like burgers or hot dogs.

With Picnic Foods

• Pack in portable containers alongside sandwiches or wraps.
• Complement the salad with fresh fruit for a balanced lunch.

As a Side Dish

• Use it as a zesty companion to rich dishes like lasagna or casseroles.
• It balances heavier flavors beautifully.

For Meal Prep

• Store in airtight containers for easy grab-and-go lunches throughout the week.
• The flavors deepen over time, making it even tastier!

How to Perfect Cucumber Onion Salad with Mustard Vinaigrette

To ensure your Cucumber Onion Salad is always on point, consider these helpful tips.

• Use fresh ingredients: Fresh cucumbers and herbs enhance the flavor and crunch of your salad.
• Soak the onions: Soaking red onions in ice water helps reduce sharpness while keeping them crisp.
• Adjust seasoning: Taste the dressing before adding it to the salad; adjust salt and pepper as needed.
• Let it sit: Allowing the salad to rest for 15 minutes after tossing lets all flavors blend perfectly.
• Add variety: Experiment by incorporating other ingredients like bell peppers or radishes for extra flavor and texture.
• Chill before serving: Serving this salad cold enhances its refreshing qualities, perfect for hot days.

Best Side Dishes for Cucumber Onion Salad with Mustard Vinaigrette

Cucumber Onion Salad with Mustard Vinaigrette can be paired with various sides that complement its bright flavors. Here’s a list of great options.

1. Grilled Corn on the Cob: Sweet and smoky, this dish adds a delightful crunch.
2. Caprese Skewers: Fresh mozzarella, basil, and tomatoes provide a classic Italian touch.
3. Potato Salad: Creamy potato salad offers a hearty contrast to the lightness of the cucumber salad.
4. Quinoa Salad: A protein-packed option that adds another layer of healthiness to your meal.
5. Roasted Vegetable Medley: Roasted veggies bring depth and flavor, pairing well with the tangy vinaigrette.
6. Garlic Bread: Crispy garlic bread complements the freshness of the cucumber onion salad perfectly.

Common Mistakes to Avoid

Making a Cucumber Onion Salad with Mustard Vinaigrette is simple, but small mistakes can affect the outcome. Here are common pitfalls to avoid:

• Over-soaking onions: Soaking red onions for too long can make them overly soft and lose their crunch. Limit soaking time to 15 minutes for the best texture.
• Neglecting salt: Failing to salt cucumbers properly can lead to a watery salad. Always salt them and let them sit to draw out moisture.
• Skipping the resting time: Not allowing the salad to sit for at least 15 minutes after tossing can result in bland flavors. This resting period helps all ingredients meld together beautifully.
• Using old herbs: Fresh herbs are key in this salad. Using wilted or dried herbs will diminish the vibrant flavor. Always opt for fresh dill and chives.
• Ignoring dressing balance: A poorly balanced vinaigrette can overpower the salad. Make sure to taste and adjust seasonings to achieve a harmonious flavor profile.

Storage & Reheating Instructions

Refrigerator Storage

• Best Storage Time: The salad stays fresh for up to 2 days in the refrigerator.
• Container: Store in an airtight container to maintain crispness.
• Separation: If you prefer, keep the dressing separate until ready to serve for optimal freshness.

Freezing Cucumber Onion Salad with Mustard Vinaigrette

• Not Recommended: Freezing is not recommended as it can change the texture of cucumbers and onions.
• Flavor Loss: Freezing may also cause a loss of flavor in fresh herbs.

Reheating Cucumber Onion Salad with Mustard Vinaigrette

• Oven: Not applicable, as salads are best served cold.
• Microwave: Avoid reheating; serve chilled instead.
• Stovetop: Not suitable for reheating; this dish is served fresh.

Frequently Asked Questions

Can I customize my Cucumber Onion Salad with Mustard Vinaigrette?

You can easily customize your salad by adding additional vegetables like bell peppers or tomatoes. You could also substitute different herbs if you don’t have dill or chives on hand.

How long does Cucumber Onion Salad with Mustard Vinaigrette last?

The salad can last up to 2 days when stored properly in an airtight container in the refrigerator.

What can I serve with Cucumber Onion Salad with Mustard Vinaigrette?

This salad pairs well with grilled meats, sandwiches, or as part of a picnic spread. It’s an excellent side dish for barbecues and summer gatherings.

Is this recipe gluten-free?

Yes, all ingredients used in this Cucumber Onion Salad with Mustard Vinaigrette are gluten-free, making it suitable for those avoiding gluten.

Final Thoughts

The Cucumber Onion Salad with Mustard Vinaigrette is not only refreshing but also versatile enough for various occasions. Whether you’re hosting a summer barbecue or looking for a light lunch option, this recipe fits perfectly. Feel free to customize it with your favorite veggies or herbs! Enjoy this delightful dish that highlights fresh flavors and easy preparation.