There's nothing more refreshing than chilled Marinated Cucumber Onion salad on a hot summer day!
Crisp cucumbers, nestled in a sweet and tangy dressing, with red onion, avocados and grape tomatoes- serve as a side dish with just about anything or have it as a mid-day summer snack by itself!
This recipe takes the old fashioned cucumber and onion salad to a new level and I bet you'll make this simple summer recipe often!
Why you'll love this recipe!
- Quick and easy - for best results, allow the cucumber and onion mixture to sit in the vinegar based marinade for at least an hour
- Healthy and low-calorie - cucumbers are high in nutrients, (as are onion, tomato and avocado) and all are low in calories!
- Affordable- inexpensive ingredients which makes this marinated salad perfect for groups
- Simple ingredients - nothing fancy or gourmet! You probably have most of the ingredients in your kitchen right now!
- Versatile - add different vegetables and herbs to this summer salad
My grandmother had a bowl of marinated cucumbers and onions on the table at almost every meal. Turns out, vinegar, particularly apple cider vinegar, has many favorable health properties and aids in digestion.
Here's what you'll need:
Cucumbers, onion, grape tomatoes and avocado are the base of the salad, however, feel free to add your favorite veggie to the mix!
What kind of cucumbers, onions and tomatoes?
You can use "regular" cucumbers or the seedless or European ones. As for the tomatoes, I prefer the tiny grape tomatoes, but sliced cherry or vine tomatoes works, too!
The traditional recipe uses white onion, but I switched that out for a sweet red onion. The contrast of flavor pairs well with the marinade and cucumbers.
Won't the avocado turn brown?
As for the avocado, this is entirely optional, but it does add a nice flavor and texture! The acid from the apple cider vinegar prevents the avocado from turning brown, so this is a nice addition if you're so inclined.
The marinade, or dressing for Cucumber Onion salad is:
Apple cider vinegar, sugar, oil and a pinch of salt.
What kind of oil?
This recipe calls for either canola or vegetable oil. I do not recommend olive oil simply because some brands of olive oil have a flavor to them which interferes with the marinade.
How to make the dressing:
In a medium saucepan, add vinegar, sugar, oil and a pinch of salt; heat and stir until sugar is dissolved; allow to cool then drizzle over sliced vegetables, cover and refrigerate.
Marinated Cucumber and Onion salad is relatively low in calories; in fact, one tablespoon of the dressing has only about 59 calories.
Slice a regular or seedless cucumber in thin strips about ⅛ - ¼" inch; a sharp knife or mandolin works best
If you want the perimeter of the cucumber to have a scalloped look, drag fork tongs down the side of the cucumber before you slice it
I recommend using tiny whole grape tomatoes. I've found if you slice them, the seeds get mixed into the dressing and the final presentation doesn't look as pretty
Apple cider vinegar works best for this recipe, but you could use red wine vinegar; just keep in mind that the cucumbers might turn pink
Allow the marinade to cool before pouring it over the sliced vegetables
Refrigerate the marinated vegetable medley in the fridge for at least an hour, so all the flavors can blend
To serve, use a slotted spoon
Variety is the spice of life and this marinated salad can take on just about anything you like! Add your personal favorites and put your own spin on this!
Herbs: dill works best, but a general Italian seasoning blend is nice, too
Veggies: toss in some radishes, black olives, green olives, artichoke hearts or sliced heart of palm
Don't like tomatoes? Substitute them with sliced red peppers for flavor and color!
Add cheese: garnish your serving bowl with crumbled feta, goat or blue cheese
If you're invited to a neighbor's barbecue or picnic, take a jar of marinated cucumber and onion salad as a hostess gift! Tie a pretty bow around it and say, "Thank you!"
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If you make this recipe, please scroll down and leave a rating and comment! I love to hear from you!
Marinated Cucumber Onion and Tomato Salad
- 2 large cucumbers , sliced
- 2 pints grape tomatoes
- 2 large red onions ,sliced
- 2 large avocados , sliced (or 3 small avocados)
- 2 cups sugar , granulated
- 2 cups apple cider vinegar
- 2 tablespoons oil , vegetable or canola
- salt and pepper to taste
- In a large saucepan on medium low heat, add the sugar, vinegar and oil; stir and heat until sugar dissolves; set aside to cool
- Slice cucumbers and onions
- Place cucumbers, onions and grape tomatoes in a large bowl
- Pour cooled marinade over vegetables; combine well
- Add sliced avocado; stir in gently
- Cover and refrigerate for at least 1 hour
- When ready to serve, use slotted spoon to remove marinated veggies from bowl and plate to serving dish; drizzle a little of the marinade over the plated veggies; use slotted spoon to serve