Easy Tangy Cucumber Tomato Salad

Erin’s Ultimate Marinated Cucumber Tomato Salad: A Summer Essential

Chef Erin Collins smiling, promoting her delicious salad recipe.

Welcome to my kitchen! Today, I’m thrilled to share an absolute gem of a recipe: my Marinated Cucumber Tomato Salad. This isn’t just any side dish; it’s a vibrant, refreshing, and incredibly simple summer staple that my family can’t get enough of. With its delightful crunch and tangy-sweet dressing, it’s destined to become a go-to for your weeknight meals, barbecues, and potlucks alike. Get ready to impress with minimal effort!

Let’s dive into what makes this salad truly special:

  • Texture: Prepare your taste buds for a symphony of textures! You’ll experience the delightful crispness of fresh cucumbers, the subtle bite of tender, marinated red onions, and the juicy burst of ripe tomatoes. It’s a refreshing crunch in every forkful.
  • Taste: Each ingredient sings in harmony with the bright and tangy marinade, offering a refreshing flavor profile. A hint of sweetness perfectly balances the zesty vinegar, creating an irresistible taste that awakens the palate.
  • Ease: You won’t believe how easy this salad is to make! Requiring just about 15 minutes of active prep time, it’s an ideal recipe for culinary beginners and seasoned home cooks seeking quick, delicious options.
  • Top Tips: The secret to truly outstanding flavor lies in the marination. Allow the salad to chill and marinate for at least 2 hours. This crucial step ensures the cucumbers and onions fully absorb the vibrant dressing, making the flavors pop even more. It truly gets better with time!
  • Would I make this again? Absolutely, without a doubt! This Marinated Cucumber Tomato Salad is a non-negotiable summer must-have. Its versatility makes it perfect for casual weeknight dinners, festive backyard BBQs, and communal potluck gatherings.

xoxo erin

A vibrant bowl of Marinated Cucumber Tomato Salad, showcasing fresh cucumbers, ripe tomatoes, and thinly sliced red onions, perfectly dressed and ready to serve.

Featured Comment

From Jerry: “This was so delicious! After a couple hours I had to taste it and it was all I could do to control myself and not eat the entire bowl. This easy marinated cucumber tomato salad is a true winner!”

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Key Ingredients for Your Perfect Cucumber Tomato Salad

Crafting the perfect Marinated Cucumber Tomato Salad begins with selecting the right, fresh ingredients. While this recipe is incredibly flexible, a few key components truly make it shine. Below, I’ve shared some important notes on choosing and preparing your produce and pantry staples. For precise measurements, you can always jump to the full recipe card below.

Fresh ingredients for Marinated Cucumber Tomato Salad arranged beautifully on a rustic kitchen countertop, including cucumbers, tomatoes, red onion, and fresh parsley.
  • Cucumbers: For this Marinated Cucumber Tomato Salad, I generally reach for hothouse or English cucumbers. Their crisp texture and nearly seedless interior make them ideal for salads. However, don’t feel restricted! Any variety, be it regular slicing cucumbers, delicate Persian cucumbers, or even robust heirloom varieties, will work beautifully and still deliver that refreshing crunch we all love.
  • Onion: The vibrant pop of color from thinly sliced red onion adds both visual appeal and a delicious, mild bite to the salad. Red onions mellow beautifully as they marinate, infusing the dressing with their flavor without overpowering the other ingredients. If red isn’t your preference, sweet onions, yellow onions, or even elegant shallots can be used. The key is to slice them as thinly as possible to allow them to soften and absorb the vinaigrette.
  • Tomatoes: Flexibility is key when it comes to tomatoes in this easy cucumber salad recipe! Throughout the year, cherry or grape tomatoes are my convenient and consistent choice, offering small bursts of juicy sweetness. But when summer is in full swing and heirloom tomatoes are abundant, they are an absolute dream for their incredible flavor and varied colors. Roma tomatoes are another excellent option, providing a firm texture and less water content. Ultimately, choose whatever looks ripe, juicy, and appealing at your local market.
  • Fresh Parsley: A generous handful of fresh parsley is more than just a garnish; it adds a burst of vibrant green color and a wonderfully fresh, herbaceous note that elevates the entire dish. Feel free to get creative here! Fresh basil can lend a lovely summery, almost Mediterranean, aroma, while a sprinkle of fresh dill can introduce an extra layer of brightness and classic flavor.
  • Vinegar: Apple cider vinegar is my absolute favorite for the marinade in this Cucumber Tomato Salad. Its slightly fruity and mellow acidity complements the vegetables perfectly. If you don’t have apple cider vinegar on hand, white wine vinegar, red wine vinegar, or even plain white vinegar can serve as excellent substitutes. I typically avoid balsamic vinegar, as it tends to darken the vibrant green of the cucumbers, which isn’t ideal for presentation.
  • Olive Oil: A high-quality extra virgin olive oil contributes a pleasant richness and a silky texture to the vinaigrette. It helps to emulsify the dressing and carry the flavors. For those who prefer a lighter dressing, you can easily use a blend of half olive oil and half neutral-flavored vegetable oil, such as avocado oil or grapeseed oil. This offers flexibility while maintaining the desired texture.

Crafting Your Perfect Marinated Cucumber Tomato Salad: Step-by-Step

Creating this delightful Marinated Cucumber Tomato Salad is wonderfully straightforward, making it an excellent recipe for any skill level. The process is simple, efficient, and yields incredibly flavorful results that are perfect for any occasion. Here’s a comprehensive overview of how to prepare this refreshing side dish. For complete, detailed instructions, you can easily jump to the full recipe card below!

A visual guide showing the preparation steps for Marinated Cucumber Tomato Salad: making the vinaigrette, combining cucumbers and onions, adding tomatoes, and the final serving presentation.
  • Prep the Salad Ingredients. Begin by preparing your fresh vegetables. Take your cucumbers and slice them in half lengthwise. Then, cut them into uniform ¼-inch half-moons. This ensures a consistent bite and allows for maximum flavor absorption. Next, thinly slice your red onion into delicate ribbons, not thick chunks. The thinner the slices, the more they will mellow out in the marinade, becoming tender and less pungent. After slicing, cut these ribbons into manageable 1-inch lengths. Transfer all the prepared cucumbers and onions into a large mixing bowl, ensuring there’s enough space to toss everything effectively.
  • Make the Vinaigrette. In a separate small bowl or a measuring cup, combine all the dressing ingredients: water, vinegar, sugar, salt, pepper, and olive oil. Whisk everything together vigorously until the mixture is smooth, glossy, and well-emulsified. It’s crucial that the sugar is fully dissolved to ensure a perfectly balanced sweet and tangy flavor throughout the salad. Chef’s Tip: If you prefer, you can easily swap out granulated sugar for your favorite alternative sweetener. When using liquid sweeteners like honey or agave, start with half the recommended amount and adjust to your taste preference, as their sweetness levels can vary.
  • Combine and Chill. Once your vegetables are prepped and your vinaigrette is ready, it’s time to bring them together. Pour the vibrant vinaigrette generously over the sliced cucumbers and onions in the large bowl. Stir everything gently but thoroughly, ensuring that every piece of vegetable is beautifully coated and glossy. This initial coating is vital for the marination process. Now, the most important step: refrigerate the salad for a minimum of 2 hours. This chilling time allows the flavors to truly meld and deepen, transforming simple vegetables into a complex and incredibly refreshing side dish. Before you’re ready to serve, carefully drain off any excess marinade liquid. Then, gently fold in your chopped fresh tomatoes and the fragrant fresh parsley. Give it one last gentle toss to combine everything evenly, and serve immediately to enjoy the peak freshness and flavor of this exquisite salad!

Why You’ll Adore This Marinated Cucumber Tomato Salad

Beyond its simple preparation, this Marinated Cucumber Tomato Salad offers a plethora of reasons to make it a regular feature on your table:

  • Perfect for Summer Gatherings: Whether it’s a backyard BBQ, a lakeside picnic, or a casual potluck, this salad is always a crowd-pleaser. Its refreshing nature and vibrant colors make it a standout dish that complements any grilled meal.
  • Naturally Gluten-Free and Dairy-Free: For those with dietary restrictions or sensitivities, this salad is a fantastic option. It’s naturally gluten-free and dairy-free, making it accessible and enjoyable for a wide range of guests without compromising on flavor.
  • Hydrating and Healthy: Packed with fresh cucumbers and tomatoes, this salad is incredibly hydrating and rich in vitamins and antioxidants. It’s a guilt-free way to enjoy a delicious side dish that supports a healthy lifestyle.
  • Budget-Friendly: Made with readily available and affordable produce, this salad is kind to your wallet. It’s a great way to enjoy fresh, flavorful food without breaking the bank, especially when cucumbers and tomatoes are in season.
  • Extremely Versatile: Don’t limit yourself! This salad can easily be customized to your liking. Add a sprinkle of feta cheese (if not dairy-free), a handful of olives, or even some thinly sliced bell peppers for extra flavor and crunch.
  • Meal Prep Friendly: While best enjoyed after a short marination, the dressing can be made ahead of time, and the core ingredients (cucumbers and onions) benefit from soaking up the flavors. It makes for excellent leftovers that taste even better the next day!

Customizing Your Marinated Cucumber Tomato Salad

This marinated cucumber tomato salad recipe is wonderfully forgiving and adaptable. Here are a few ideas to make it your own:

  • Herb Variations: While parsley offers a classic fresh note, consider swapping it for fresh dill for a more traditional Eastern European profile, or basil for an Italian-inspired twist. A mix of herbs can also be delightful!
  • Adding Heat: For a subtle kick, finely mince a small jalapeño or a pinch of red pepper flakes into the vinaigrette. Just remember to deseed the jalapeño for less heat.
  • Extra Veggies: Feel free to toss in other fresh, crunchy vegetables. Thinly sliced bell peppers (any color), chopped celery, or even radishes can add more texture and flavor dimensions.
  • Sweetener Adjustments: The recipe calls for sugar, but you can certainly adjust the amount to your preference. For a low-carb option, use a granulated sugar substitute. If you prefer natural sweeteners, a touch of maple syrup or honey can work, just be mindful of the liquid consistency.
  • Protein Boost: Turn this side dish into a light main course by adding grilled chicken, chickpeas, or canned tuna. It’s perfect for a healthy and satisfying lunch.

You’ll find that this Marinated Cucumber Tomato Salad pairs beautifully with a variety of main courses. It’s the perfect refreshing counterpoint to richer dishes. For a truly complete and satisfying meal, you also might like my gluten-free smashburgers, especially when topped with my irresistible homemade smashburger sauce! To round out your BBQ spread or weeknight dinner, try these crispy Blackstone fried potatoes. And for a truly invigorating summer drink to accompany your meal, don’t miss this easy, refreshing, berry-infused homemade lemonade!

A close-up shot of Marinated Cucumber Tomato Salad in a serving bowl, with a hand reaching in with a fork, emphasizing its irresistible freshness and readiness to be enjoyed.
Tomato cucumber salad in a serving bowl.
★★★★★

5 from 21 votes

Cucumber Tomato Salad (Easy Marinade!)

Author
Erin Collins
Prep Time
15 mins
Marinade Time
2 hrs
Total Time
2 hrs 15 mins
Servings
6 servings
This is an old family recipe for Marinated Cucumber Tomato Salad, a perfect gluten-free and dairy-free side dish. We enjoy this refreshing salad on repeat all summer long. The easy-to-make apple cider vinegar marinade is incredibly delicious and creates a truly unforgettable flavor!
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Ingredients

  • 2-3 cucumbers thinly sliced (I usually use 2 large English cucumbers for best results in this marinated cucumber tomato salad)
  • 1/2 cup red onion very thinly sliced into delicate ribbons
  • 1 cup water
  • 1/2 cup apple cider or red wine vinegar (apple cider vinegar is highly recommended for its balanced flavor)
  • 1/4 cup granulated sugar (adjust to your sweetness preference, or use a natural sweetener alternative)
  • 1 tablespoon salt
  • 1 teaspoon black pepper
  • 3 medium tomatoes chopped (or 2-3 cups of any ripe tomato you prefer, such as cherry or Roma)
  • 3 tablespoons olive oil (use good quality extra virgin olive oil for best flavor)
  • 1/4 cup chopped fresh parsley optional, but highly recommended for freshness and color

Instructions

  1. Carefully place the thinly sliced cucumbers and red onion into a large, non-reactive mixing bowl. In a separate small bowl or liquid measuring cup, whisk together the water, your chosen vinegar (apple cider vinegar for best results), sugar, salt, pepper, and olive oil. Continue whisking until the sugar is completely dissolved and the dressing is well combined and slightly emulsified.
  2. Pour the prepared vinaigrette over the cucumbers and onions in the large bowl. Gently toss to ensure all the vegetables are evenly coated with the marinade. Cover the bowl and transfer it to the refrigerator. Allow the salad to marinate for a minimum of 2 hours, and up to 6 hours, to let the flavors deeply meld and the onions to soften beautifully.
  3. Before serving, pour off all but a few tablespoons of the excess marinade liquid from the bowl. This prevents the salad from becoming watery. Add the chopped fresh tomatoes and the fresh parsley (if using) to the bowl. Gently toss everything one last time to combine. Serve chilled and enjoy this wonderfully refreshing Marinated Cucumber Tomato Salad!

Notes for the Best Marinated Cucumber Tomato Salad

  • SUBSTITUTIONS: This Marinated Cucumber Tomato Salad recipe is incredibly versatile and forgiving! Feel free to use any kind of cucumber, tomato, or onion you have readily available or prefer. For the vinaigrette, while apple cider vinegar is highly recommended for its balanced flavor, you can successfully substitute with white vinegar, white wine vinegar, or red wine vinegar.
  • To Make Ahead: For convenience, you can prepare the marinade up to a week in advance and store it in a sealed container in the refrigerator. When you’re ready to assemble the salad, give the homemade dressing a good shake before pouring it over your freshly sliced cucumbers and onions. Add the tomatoes and herbs just before serving for optimal freshness.
  • To Store: Leftover Marinated Cucumber Tomato Salad will keep well in an airtight container in the refrigerator for 3-4 days. While it tastes fantastic a few hours after making, note that the tomatoes may become slightly softer or mealy after extended refrigeration. It’s always best enjoyed within the first day or two.
  • To Freeze: Unfortunately, this fresh cucumber tomato salad is not suitable for freezing. The high water content in the fresh vegetables means they will lose their crisp texture and become watery and mushy once thawed. This salad is truly meant to be enjoyed fresh and chilled!

Nutrition Facts (Per Serving)

Calories: 128kcal |
Carbohydrates: 15g |
Protein: 1g |
Fat: 7g |
Saturated Fat: 1g |
Sodium: 1174mg |
Potassium: 323mg |
Fiber: 2g |
Sugar: 12g |
Vitamin A: 795IU |
Vitamin C: 16mg |
Calcium: 27mg |
Iron: 1mg

This Marinated Cucumber Tomato Salad recipe was originally published in June 2015, quickly becoming a reader favorite. It was updated with new photos, enhanced instructions, and additional tips for an even better culinary experience in June 2025.

Frequently Asked Questions (FAQ) About This Salad

  • Q: Can I use different types of cucumbers?
    A: Absolutely! While English or hothouse cucumbers are recommended for their crispness and minimal seeds, regular, Persian, or even garden heirloom cucumbers will work. Just ensure they are fresh and firm.
  • Q: How thin should I slice the onions?
    A: The thinner the better! Aim for paper-thin slices. This allows them to quickly absorb the marinade, mellowing their strong flavor and integrating seamlessly into the salad’s texture.
  • Q: Can I make this salad without sugar?
    A: Yes, you can. The sugar helps balance the acidity of the vinegar. You can reduce the amount, omit it entirely for a tangier salad, or use a sugar substitute like erythritol or stevia to maintain a hint of sweetness.
  • Q: What if I don’t have apple cider vinegar?
    A: No problem! White wine vinegar, red wine vinegar, or even distilled white vinegar are good substitutes. Each will impart a slightly different flavor profile, but all will work well in the marinade.
  • Q: Can I add other vegetables to this salad?
    A: Definitely! This salad is very versatile. Consider adding thinly sliced bell peppers, a handful of pitted olives, or even some crumbled feta cheese (if not keeping it dairy-free) for extra flavor and texture. Add delicate items like bell peppers and olives with the tomatoes.
  • Q: Is this salad good for meal prepping?
    A: It can be! The cucumbers and onions benefit greatly from marinating. If meal prepping, store the marinated cucumbers and onions separately from the chopped tomatoes and herbs. Combine them just before serving to maintain the best texture of the tomatoes. The dressing can be made up to a week in advance.

Discover More Refreshing Summer Salad Recipes

If you loved this Marinated Cucumber Tomato Salad, you’re in for a treat! Explore more of our favorite fresh and flavorful summer salads perfect for any occasion:

  • The Best Creamy Potato Salad Recipe
  • Vibrant Gluten-Free Italian Pasta Salad
  • Sweet and Savory Corn Salad with Feta Cheese
  • Festive 4th of July Fruit Salad
  • My Favorite Healthy Quinoa Salad Recipe