Cucumber and Onions in Vinegar is the perfect addition to your summer BBQ or family gathering. This classic Southern side dish brings a crisp and tangy flavor that pairs well with a variety of main dishes. With just five ingredients and minimal prep time, it’s an easy-to-make recipe that will quickly become a favorite. Whether you’re hosting a backyard cookout or bringing a dish to a potluck, this refrigerator pickle recipe is sure to be a crowd-pleaser. Let’s dive into how to make this refreshing cucumber and onion salad, a tangy treat for your taste buds.
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Why You’ll Love Cucumber and Onions in Vinegar
The beauty of Cucumber and Onions in Vinegar lies in its simplicity. It’s a quick, healthy, and flavorful side dish that requires very little preparation time. In under 10 minutes, you can have a tangy, marinated cucumber and onion salad ready for the refrigerator. The longer the salad marinates, the more the flavors develop, making it a great make-ahead option. With only a few ingredients, this recipe is both affordable and versatile, fitting into almost any meal plan. Plus, it’s a fantastic way to add crunch and tang to your table.
Ingredients for Cucumber and Onions in Vinegar
Here’s a list of what you’ll need to prepare this refreshing summer side dish:
• Cucumbers: Provides a crisp, refreshing texture. English cucumbers or Kirby cucumbers work best as they’re less watery.
• Sweet Onion: Adds a mild sweetness that balances the tangy vinegar.
• Distilled White Vinegar or White Wine Vinegar: The base of the tangy pickling liquid that gives the salad its bold flavor.
• Warm Water: Helps dissolve the sugar and salt, creating a smooth pickling solution.
• Granulated Sugar: Enhances the balance of flavors, though optional for a keto-friendly version.
• Salt: Essential for the brine, providing flavor and aiding in the marinating process.
Alternative Ingredient Suggestions
If you’re looking for variations or need to accommodate dietary preferences, consider these substitutions:
- Vinegar: Apple cider vinegar can be used for a slightly different taste, though it may discolor the cucumbers.
- Onions: Swap sweet onions for red onions for a colorful twist and an extra zing.
- Sweeteners: Skip the sugar for a sugar-free or keto-friendly version of this recipe.
- Herbs: Fresh herbs like dill, mint, or parsley can be added to the pickling liquid for an extra flavor boost.
Step-by-Step Instructions for Cucumber and Onions in Vinegar
- Prepare the Pickling Liquid: In a medium-sized bowl, whisk together ⅓ cup distilled white vinegar, ¼ cup warm water, 1 teaspoon sugar (optional), and 1 teaspoon salt. The warm water helps dissolve the sugar and salt quickly.
- Prepare the Vegetables: Peel the cucumbers, removing the tough skin. If using regular cucumbers, you can scoop out the seeds. Slice the cucumbers thinly, about ⅛ to ¼-inch thick. Thinly slice the sweet onion.
- Combine: Add the cucumber slices and onion slivers to the pickling liquid. Stir gently to ensure the vegetables are fully coated.
- Chill and Marinate: Cover the bowl or transfer the mixture to a jar with a resealable lid. Refrigerate for at least 2 hours, though the flavors intensify the longer they marinate.
- Serve: Serve the pickled cucumber and onion salad with a slotted spoon, discarding excess liquid. Optionally, sprinkle with freshly ground black pepper.

Tips and Tricks for Perfect Cucumber and Onions in Vinegar
To ensure your cucumber and onion salad is as delicious as possible, consider the following tips:
- Slicing: Use a mandolin slicer to ensure your cucumbers and onions are sliced uniformly for even marination.
- Pickling Time: For the best flavor, allow the cucumbers and onions to marinate for at least 2 hours, though 24 hours will give the best results.
- Texture: If your cucumbers are particularly watery, consider removing the seeds or using English cucumbers, which have fewer seeds and a thinner skin.
- Serving Suggestions: Serve chilled and try garnishing with some fresh herbs like dill or parsley for added freshness.
Pairing Ideas and Variations
Cucumber and Onions in Vinegar can be paired with many different dishes, making it a versatile addition to any meal:
- Grilled Meats: It pairs wonderfully with grilled chicken, burgers, or shrimp, adding a refreshing contrast to the smoky flavors.
- Fried Foods: The tanginess complements fried chicken or even fried fish, balancing the richness of these dishes.
- Other Side Dishes: Serve alongside Corn Avocado Tomato Salad or Sour Cream & Green Onion Potato Salad for a perfect summer meal.
Variations
- Red Onions: For a colorful and slightly different flavor, try using red onions instead of sweet onions.
- Greek Twist: Add feta cheese and olives for a Mediterranean-inspired variation.
- Spicy Version: Add a pinch of red pepper flakes to give the salad an extra kick.
- Mixed Veggies: You can add other vegetables like radishes, bell peppers, or carrots to the same pickling liquid for a more colorful and varied salad.
Conclusion
Cucumber and Onions in Vinegar is more than just a simple side dish—it’s a refreshing and flavorful addition to any summer meal. With its crisp cucumbers, sweet onions, and tangy vinegar-based dressing, it provides the perfect balance of crunch and acidity. This easy-to-make recipe comes together quickly and can be prepared ahead of time, making it an ideal choice for potlucks, BBQs, and picnics. Plus, with the ability to customize it with different vegetables and herbs, you can make it your own every time. Whether you’re hosting a summer gathering or just looking for a light, healthy dish to serve, this marinated cucumber and onion salad will always be a crowd-pleaser.
Frequently Asked Questions (FAQ)
How long should I let cucumber and onions in vinegar marinate?
For the best flavor, marinate your cucumber and onions for at least 2 hours in the refrigerator. However, the longer they marinate, the more intense the flavor becomes. Ideally, letting them sit overnight will give the best results.
Can I use other types of vinegar for this recipe?
Yes, while distilled white vinegar or white wine vinegar are the most common options for this recipe, you can also use other types like apple cider vinegar. Just note that apple cider vinegar may slightly discolor the onions and cucumbers.
How do I store cucumber and onions in vinegar?
Store your cucumber and onion salad in an airtight container in the refrigerator. It will stay fresh for up to 2 weeks, making it a great make-ahead option for busy weeks or gatherings.
Can I make this recipe keto-friendly?
Yes! Simply omit the sugar to make a keto-friendly version of this cucumber and onion salad. The tangy vinegar and salt will still provide plenty of flavor without the sugar.
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Cucumber and Onions in Vinegar
- Total Time: 1 hour 10 minutes
- Yield: 2.5 cups
- Diet: Low Calorie
Description
Cucumber and Onions in Vinegar is a tangy, refreshing side dish that combines the crunch of cucumbers with the sweetness of onions, all marinated in a vinegar-based dressing. This easy-to-make recipe is perfect for summer BBQs, picnics, and potlucks, offering a healthy and flavorful option for any meal.
Ingredients
- 2 large cucumbers (or 1 large English cucumber)
- ½ cup sweet onion slivers
- ⅓ cup distilled white vinegar or white wine vinegar
- ¼ cup warm water
- 1 teaspoon granulated sugar (optional)
- 1 teaspoon salt
- Freshly ground black pepper (optional)
Instructions
- In a medium-sized bowl, whisk together ⅓ cup vinegar, ¼ cup warm water, 1 teaspoon sugar (optional), and 1 teaspoon salt until the sugar and salt dissolve.
- Peel the cucumbers and slice them about ⅛ to ¼-inch thick. If using regular cucumbers, remove the seeds. If using English cucumbers, no need to peel or seed.
- Peel and slice the sweet onion thinly.
- Add the cucumber slices and onion slivers to the pickling liquid and stir gently to combine.
- Cover the bowl or transfer the mixture to a jar with a resealable lid. Refrigerate for at least 2 hours. The longer the vegetables marinate, the more flavorful they become.
- Serve with a slotted spoon, optionally sprinkled with freshly ground black pepper.
Notes
- For a keto-friendly version, omit the sugar.
- Red onions can be used for extra color and a slight variation in flavor.
- This recipe can also include other vegetables like radishes or bell peppers for added texture and color.
- For best flavor, allow the cucumbers and onions to marinate for at least 2 hours, though overnight will provide the best taste.
- Prep Time: 10 minutes
- Cook Time: 0 minutes
- Category: Side Dish
- Method: Refrigerated Pickle
- Cuisine: Southern
Nutrition
- Serving Size: 1/4 cup
- Calories: 7 kcal
- Sugar: 1 g
- Sodium: 115 mg
- Fat: 0 g
- Saturated Fat: 0 g
- Unsaturated Fat: 0 g
- Trans Fat: 0 g
- Carbohydrates: 2 g
- Fiber: 0 g
- Protein: 0 g
- Cholesterol: 0 mg