Marinated Cucumbers Onions and Tomatoes Recipe tastes crisp, tangy, and a little sweet, like summer in a bowl with a tiny kick of peppery bite. It works well for busy home cooks who want a fresh side dish in about 20 minutes of hands-on time plus chill time in the fridge. I grew up eating versions of this at every cookout, and I still sneak a forkful straight from the bowl before it hits the table.
Why You Should Try This Marinated Cucumbers Onions and Tomatoes Recipe
This salad hits that perfect balance of crunchy, juicy, tangy, and refreshing. The vinegar wakes up your taste buds, the tomatoes bring sweetness, and the onions add just enough sharpness without taking over.
You can toss it together with simple pantry staples and a few fresh veggies. It works for potlucks, weeknight dinners, and meal prep, and it tastes even better the next day.
“This Marinated Cucumbers Onions and Tomatoes Recipe tastes like summer in every bite and disappears from the table in minutes. ★★★★★”
Ingredients You’ll Need
Fresh produce
- 3 medium cucumbers, thinly sliced
- English or Persian cucumbers give a tender crunch and fewer seeds.
- Standard cucumbers also work; peel them if the skin feels tough.
- 1 pint cherry or grape tomatoes, halved
- Roma tomatoes or vine tomatoes, cut into wedges, also taste great.
- 1 small red onion, very thinly sliced
- Yellow or sweet onion works if you prefer a milder flavor.
- 2 tablespoons fresh parsley, chopped
- 1 tablespoon fresh dill, chopped
- Use 1 teaspoon dried dill if fresh herbs stay scarce.
Marinade ingredients
- 1/3 cup distilled white vinegar
- Apple cider vinegar gives a softer tang and a hint of fruitiness.
- 2 tablespoons red wine vinegar
- Use all white or all apple cider vinegar if you want to keep it simple.
- 1/4 cup extra virgin olive oil
- Any neutral oil like avocado or canola works in a pinch.
- 2–3 tablespoons granulated sugar
- Start with 2 tablespoons, then taste and add more if you like a sweeter balance.
- Use honey or agave for a different flavor.
- 1 teaspoon kosher salt, plus more to taste
- 1/2 teaspoon freshly ground black pepper
- 1/2 teaspoon garlic powder
- Or 1 small fresh garlic clove, very finely minced.
- 1/4 teaspoon crushed red pepper flakes
- Optional, but it adds a gentle heat that plays well with the vinegar.
Pantry shortcuts and notes
- Pre-sliced cucumbers and pre-cut tomatoes from the produce section save time.
- Pre-chopped herbs in squeeze tubes work if fresh bunches feel wasteful.
- A bottled Italian dressing can stand in for the marinade in a pinch, though the flavor turns a bit different from the classic version.
Equipment list
- Large mixing bowl
- Small bowl or jar with lid for the marinade
- Sharp chef’s knife or mandoline for thin slices
- Cutting board
- Measuring cups and spoons
- Spoon or tongs for tossing
- Plastic wrap or airtight container for chilling
Tips & Tricks
- Salt the cucumber slices lightly and let them sit 10 minutes, then pat dry, to keep the salad from watering down.
- Slice the onion as thin as you can so it tastes mild and blends into the salad instead of overpowering it.
- Mix the marinade in a jar and shake it; the oil and vinegar combine better and coat the veggies more evenly.
- Taste the marinade before you pour it on and adjust salt, sugar, and vinegar to match your tangy vs sweet preference.
- Chill the salad at least 1 hour so the flavors settle in; 4 to 6 hours gives the best flavor.
- Stir the salad once or twice while it chills so every bite gets plenty of marinade.
- Use firm tomatoes so they hold their shape and do not turn mushy in the vinegar.
- Add feta, mozzarella pearls, or chickpeas if you want to turn it into a light lunch.
- Keep the herbs for last minute sprinkling if you plan to store the salad for more than a day.
- Serve with a slotted spoon to avoid flooding the plate with extra liquid.
How to Make Marinated Cucumbers Onions and Tomatoes Recipe
Step 1: Prep the vegetables
Wash the cucumbers and tomatoes under cool water and dry them well. Slice the cucumbers into thin rounds, about 1/8 inch thick, so they soak up the marinade nicely. Halve the cherry tomatoes, or cut larger tomatoes into bite-size wedges, and slice the red onion into very thin half moons.
If you want extra crisp cucumbers, sprinkle them with a pinch of salt and let them sit in a colander for 10 minutes. Pat them dry with a clean towel or paper towels. Add the cucumbers, tomatoes, and onions to a large mixing bowl.
Step 2: Mix the marinade
In a small bowl or jar, add the white vinegar, red wine vinegar, olive oil, sugar, salt, black pepper, garlic powder, and red pepper flakes. Whisk well, or shake the jar with the lid on, until the sugar dissolves and the dressing looks slightly thick and combined. Taste a small spoonful and adjust with a little more sugar for sweetness or more vinegar for extra tang.
Stir in the chopped parsley and dill. If you plan to store the salad for several days, keep half the herbs aside to add right before serving. This keeps the color bright and the flavor fresh.
Step 3: Combine and chill
Pour the marinade over the cucumbers, onions, and tomatoes in the large bowl. Toss gently with a spoon or tongs until every piece looks coated. Scrape down the sides of the bowl so no herbs or seasoning cling to the edges.
Cover the bowl with plastic wrap or transfer everything to an airtight container. Chill in the fridge for at least 1 hour, and up to 24 hours, to let the flavors develop. Toss once or twice during chilling so the marinade distributes evenly.
Step 4: Taste and serve
Right before serving, give the Marinated Cucumbers Onions and Tomatoes Recipe a gentle stir. Taste a cucumber slice and a tomato piece, then adjust with a pinch more salt or pepper if needed. Sprinkle on any reserved fresh herbs for a bright finish.
Serve the salad cold or very slightly chilled. Use a slotted spoon to scoop it into bowls or onto plates so the veggies stay crisp and not too wet. I usually keep the extra marinade in the bowl because someone always wants to dip bread into it.
What to Serve with Marinated Cucumbers Onions and Tomatoes Recipe
This salad pairs well with grilled chicken, burgers, hot dogs, or simple baked fish, since the acidity cuts through richer flavors. It also tastes great next to barbecue pulled pork, roasted potatoes, or a big pot of beans. You can spoon it over a bed of lettuce for a quick side salad or tuck it into pita with hummus for a light meal.
Serve it with iced tea, lemonade, or sparkling water with citrus slices for a refreshing combo. I also like to pile it on top of grain bowls with rice or quinoa for extra crunch and brightness.
Storage Options
- Store leftovers in an airtight container in the fridge for 3 to 4 days; the veggies soften over time but the flavor deepens.
- Stir the salad each day so the marinade coats everything again before serving.
- Skip the freezer, since cucumbers and tomatoes turn mushy after thawing and lose their crisp bite.
- Serve leftovers straight from the fridge or let them sit at room temperature for 10 to 15 minutes to take the chill off.
Marinated Cucumbers Onions and Tomatoes Recipe
Ingredients
Instructions
- Wash the cucumbers and tomatoes under cool water and dry them well.
- Slice the cucumbers into thin rounds, about 1/8 inch thick, so they soak up the marinade nicely.
- Halve the cherry or grape tomatoes, or cut larger tomatoes into bite-size wedges if using those instead.
- Slice the red onion into very thin half moons so the flavor stays mild and blends into the salad.
- For extra crisp cucumbers, sprinkle the slices lightly with a pinch of salt and let them sit in a colander for about 10 minutes, then pat dry with a clean towel or paper towels.
- Add the cucumbers, tomatoes, and onions to a large mixing bowl.
- In a small bowl or jar, combine the distilled white vinegar, red wine vinegar, olive oil, sugar, kosher salt, black pepper, garlic powder, and crushed red pepper flakes.
- Whisk well, or shake the jar with the lid on, until the sugar dissolves and the dressing looks slightly thick and combined.
- Taste a small spoonful of the marinade and adjust with a little more sugar for sweetness or more vinegar for extra tang if desired.
- Stir in the chopped parsley and dill.
- Pour the marinade over the cucumbers, onions, and tomatoes in the large bowl.
- Toss gently with a spoon or tongs until all the vegetables are evenly coated and no herbs or seasoning cling to the sides of the bowl.
- Cover the bowl with plastic wrap or transfer the salad to an airtight container.
- Chill in the refrigerator for at least 1 hour, and up to 24 hours, to let the flavors develop, tossing once or twice during chilling so the marinade distributes evenly.
- Right before serving, give the marinated cucumbers, onions, and tomatoes a gentle stir.
- Taste a cucumber slice and a tomato piece, then adjust the seasoning with a pinch more salt or pepper if needed.
- Serve the salad cold or slightly chilled, using a slotted spoon to lift the vegetables from the bowl so they stay crisp and not too wet.
Notes
Approximate per 1 of 6 servings: 80–100 calories; fat 6–8 g; saturated fat 1 g; carbohydrates 7–10 g; fiber 1–2 g; sugars 5–7 g; protein 1–2 g; sodium 250–350 mg. Values will vary based on exact cucumber size, tomato variety, vinegar choice, and the amount of sugar used.
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