Marinated Cucumber, Tomato & Onion Salad – A Summer Classic Bursting with Flavor


A Timeless Summer Favorite

Marinated Cucumber, Tomato & Onion Salad is one of those dishes that transcends cultures and borders. My grandmother used to make it with cucumbers fresh from her garden, letting them soak in a tangy vinaigrette until every bite was infused with summer brightness. Whether you’re in the American South, the Mediterranean coast, or a quiet countryside village, there’s a version of this salad being served somewhere—cool, crunchy, and bursting with flavor.

This recipe is simple yet magical: crisp cucumbers, juicy tomatoes, and sharp onions come together in a light vinegar-based marinade that transforms everyday ingredients into something extraordinary. It’s the perfect side dish for picnics, potlucks, or backyard barbecues. Bonus: it’s vegan, gluten-free, and only gets better the longer it sits!


Why You’ll Love This Marinated Cucumber, Tomato & Onion Salad

  • No cooking required – Just slice, mix, and chill
  • Perfect for hot weather – Refreshing and hydrating
  • Make-ahead friendly – Tastes better after a few hours
  • Globally inspired – Found in many cultures from Europe to Asia
  • Versatile – Great as a side, appetizer, or topping

Marinated Cucumber, Tomato & Onion Salad

🧅 Ingredients (Serves 7)

  • 2 large cucumbers, thinly sliced (peeled or unpeeled)
  • 3 medium tomatoes, chopped or sliced
  • 1 large red onion, thinly sliced
  • 1/4 cup white or apple cider vinegar
  • 2 tablespoons olive oil
  • 1 tablespoon sugar (adjust to taste)
  • 1 teaspoon salt
  • 1/2 teaspoon freshly ground black pepper
  • 1 teaspoon dried oregano or fresh herbs like dill, parsley, or basil
  • Optional: crushed red pepper, garlic, or feta cheese

⏱ Prep Time

  • Prep Time: 15 minutes
  • Marinating Time: 1–2 hours (overnight for maximum flavor)
  • Total Time: 15 minutes active + chill time

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Marinated Cucumber, Tomato & Onion Salad

Marinated Cucumber, Tomato & Onion Salad – A Summer Classic Bursting with Flavor


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  • Author: Ashlley
  • Total Time: 15 minutes active, 2 hours total
  • Yield: 1 large bowl of salad 1x
  • Diet: Halal

Description

Description

This refreshing salad features crisp cucumbers, juicy tomatoes, and tangy onions soaked in a light vinegar marinade. Perfect for summer!


Ingredients

Scale

Ingredients:

  • 2 large cucumbers, thinly sliced
  • 3 medium tomatoes, chopped or sliced
  • 1 large red onion, thinly sliced
  • 1/4 cup white or apple cider vinegar
  • 2 tablespoons olive oil
  • 1 tablespoon sugar (adjust to taste)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 teaspoon dried oregano or fresh herbs (dill, parsley, basil)
  • Optional: crushed red pepper, garlic, or feta cheese

Instructions

 Instructions:

  • Slice cucumbers and onions thinly. Chop tomatoes. Place in a large bowl.
  • In a separate bowl or jar, whisk together vinegar, olive oil, sugar, salt, pepper, and herbs.
  • Pour marinade over vegetables. Toss well to coat.
  • Cover and refrigerate for 1–2 hours, or overnight for best flavor.
  • Stir before serving. Use a slotted spoon to dish up. Garnish with extra herbs or feta if desired.

Notes

Notes:

  • Use cherry or Roma tomatoes for less moisture and better texture.
  • If your cucumbers are particularly seedy, scoop out the centers before slicing.
  • Add garlic or red pepper flakes for extra kick.
  • This salad is naturally gluten-free, vegan, and low-calorie.
  • Prep Time: 15 minutes
  • Cook Time: 0 minutes
  • Category: Salad, Side Dish, Summer Recipes
  • Method: Sarah
  • Cuisine: American

Nutrition

  • Serving Size: Approximately 1 cup per serving
  • Calories: 70
  • Sugar: 3g
  • Sodium: 240mg
  • Fat: 5g
  • Saturated Fat: 1g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 6g
  • Fiber: 1g
  • Protein: 1g
  • Cholesterol: 0mg

🥄 How to Make Marinated Cucumber, Tomato & Onion Salad

Step 1: Prep the Vegetables

Thinly slice the cucumbers and onions. Chop or slice the tomatoes. Place them all in a large bowl.

Step 2: Mix the Marinade

In a small bowl or jar, whisk together vinegar, olive oil, sugar, salt, pepper, and herbs. Taste and adjust sugar or salt based on the acidity of your vinegar.

Step 3: Combine and Toss

Pour the marinade over the vegetables and toss well to combine. Ensure everything is coated.

Step 4: Marinate and Chill

Cover the bowl and refrigerate for at least 1 hour. Stir occasionally to redistribute the marinade.

Step 5: Serve

Serve chilled with a slotted spoon. Garnish with extra herbs or feta if desired.


💡 Tips for the Best Marinated Salad

  • Use ripe, firm tomatoes – cherry or Roma work beautifully.
  • Red onions provide a milder bite, but yellow onions work in a pinch.
  • For crunchier cucumbers, don’t marinate too long.
  • Balance is key – adjust sugar or salt to taste.
  • Add a pinch of red pepper for heat or crushed garlic for depth.

❄️ Storage Tips

  • Refrigerator: Store in an airtight container for up to 3 days.
  • Don’t freeze – the vegetables will become mushy.
  • Best served fresh or after a few hours of marinating.

🌍 Cultural Notes & Variations

1. Greek-Style

Add Kalamata olives, crumbled feta, and oregano for a Horiatiki-inspired version.

2. Eastern European-Style

Use dill and apple cider vinegar, sometimes with a touch of sour cream.

3. Asian-Inspired

Swap vinegar for rice vinegar, add sesame oil, and sprinkle with toasted sesame seeds.

4. Southern U.S. Style

Use white vinegar, more sugar, and even add a few banana pepper slices for a tangy kick.


🍽 What to Serve with Marinated Cucumber, Tomato & Onion Salad

Mains:

Sides:

  • Corn on the cob
  • Pasta salad
  • Crusty bread or pita for dipping into the marinade

Drinks:

  • Iced tea
  • Lemonade
  • Light white wine or sparkling water with citrus

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