These 15 cucumber, onion, and vinegar salad recipes deliver crisp, hydrating side dishes, quick pickling methods, and tangy marinades perfect for summer barbecues, meal prep, and healthy everyday eating.

1. Grandma’s Classic Cucumber Onions and Vinegar Salad

Ingredients: 2 large English cucumbers (thinly sliced), 1 sweet yellow onion (thinly sliced), 1/2 cup white vinegar, 1/2 cup water, 2 tbsp sugar, 1 tsp salt, 1/2 tsp black pepper, 2 tbsp fresh dill (chopped).

Step-by-Step Instructions:

1. Slice English cucumbers and sweet yellow onion thinly using a mandoline or sharp chef’s knife.
2. Whisk white vinegar, water, sugar, salt, and black pepper in a medium bowl until sugar dissolves completely.
3. Place sliced cucumbers and sweet onions into a large glass bowl or sealable container.
4. Pour vinegar brine over vegetables, ensuring they are completely submerged.
5. Stir in fresh dill, cover, and chill in the refrigerator for at least 30 minutes before serving.

2. 10-Minute Quick Pickled Cucumber and Red Onion Salad

Ingredients: 2 seedless cucumbers (sliced), 1 small red onion (paper-thinly sliced), 1/2 cup apple cider vinegar, 1/4 cup warm water, 1 tbsp honey or maple syrup, 1 tsp salt, 1 tbsp fresh dill.

Step-by-Step Instructions:

1. Slice seedless cucumbers and red onion as thinly as possible.
2. In a measuring cup, stir apple cider vinegar, warm water, honey, and salt until honey dissolves.
3. Pack sliced cucumbers, red onions, and fresh dill into a clean mason jar or bowl.
4. Pour warm apple cider vinegar mixture over vegetables to cover them fully.
5. Let sit at room temperature for 10 minutes to quick-pickle, then serve or refrigerate.

3. Sugar-Free Keto Cucumber Onion Vinegar Salad

Ingredients: 2 Persian cucumbers (sliced), 1/2 white onion (thinly sliced), 1/2 cup apple cider vinegar, 1/4 cup water, 1.5 tbsp liquid monk fruit or erythritol sweetener, 1 tsp sea salt, 1 tbsp olive oil.

Step-by-Step Instructions:

1. Combine sliced Persian cucumbers and white onions in a glass container.
2. Whisk apple cider vinegar, water, sweetener, sea salt, and olive oil together in a small bowl.
3. Pour sugar-free brine over sliced vegetables and toss gently to coat evenly.
4. Cover and place in refrigerator for 20 minutes to allow flavors to absorb.
5. Drain excess brine lightly before serving as a low-carb side dish.

4. Tangy Apple Cider Vinegar Cucumber and Onion Salad

Ingredients: 2 English cucumbers (sliced), 1 sweet Vidalia onion (sliced into half-moons), 1/2 cup raw unfiltered apple cider vinegar, 1/3 cup olive oil, 1 tbsp honey, 1 tsp sea salt, 1/2 tsp cracked black pepper.

Step-by-Step Instructions:

1. Add sliced English cucumbers and Vidalia onion half-moons into a salad bowl.
2. In a small jar, combine raw apple cider vinegar, olive oil, honey, sea salt, and black pepper.
3. Seal jar and shake vigorously for 15 seconds until dressing emulsifies.
4. Pour dressing over cucumbers and onions, tossing thoroughly to coat.
5. Chill for 15 minutes before serving to let raw vinegar mellow and soften onions.

5. Creamy Vinegar Cucumber and Onion Salad

Ingredients: 2 cucumbers (sliced), 1/2 red onion (diced or sliced), 1/3 cup plain Greek yogurt, 2 tbsp white vinegar, 1 tsp lemon juice, 1/2 tsp garlic powder, 1 tsp fresh dill, salt, black pepper.

Step-by-Step Instructions:

1. Toss sliced cucumbers with 1/2 tsp salt in a colander and let drain for 10 minutes, then pat dry.
2. In a mixing bowl, whisk plain Greek yogurt, white vinegar, lemon juice, garlic powder, salt, and black pepper.
3. Add dried cucumbers and red onion into bowl with creamy vinegar dressing.
4. Fold ingredients together until vegetables are coated uniformly.
5. Garnish with chopped fresh dill and serve immediately or chilled.

6. Sweet and Tangy Southern Cucumber Onion Salad

Ingredients: 3 field cucumbers (peeled and sliced), 1 large sweet onion (sliced), 3/4 cup distilled white vinegar, 1/2 cup water, 1/3 cup granulated sugar, 1 tsp salt, 1 tsp celery seed.

Step-by-Step Instructions:

1. Peel field cucumbers, slice into rounds, and slice sweet onion into thin rings.
2. In a saucepan over low heat, combine white vinegar, water, sugar, salt, and celery seed.
3. Stir warm mixture until sugar dissolves completely, then remove from heat and cool to room temperature.
4. Place cucumber rounds and onion rings into a bowl and pour cooled sweet brine over them.
5. Cover tightly and refrigerate for at least 2 hours before serving at summer BBQs.

7. Asian Rice Vinegar Cucumber and Red Onion Salad

Ingredients: 4 Persian cucumbers (sliced), 1/2 red onion (thinly sliced), 1/3 cup unseasoned rice vinegar, 1 tbsp toasted sesame oil, 1 tsp soy sauce, 1 tsp maple syrup, 1 tbsp toasted sesame seeds.

Step-by-Step Instructions:

1. Slice Persian cucumbers thinly and place in a bowl with thin red onion slices.
2. Whisk unseasoned rice vinegar, toasted sesame oil, low-sodium soy sauce, and maple syrup in a cup.
3. Pour rice vinegar dressing over cucumber and onion mixture.
4. Toss well to coat and sprinkle toasted sesame seeds across top.
5. Serve immediately or chill for 10 minutes for a quick Asian-inspired side dish.

8. Fresh Dill Vinegar Cucumber and Onion Salad

Ingredients: 2 large cucumbers (thinly sliced), 1 yellow onion (sliced), 1/2 cup white wine vinegar, 2 tbsp olive oil, 1/4 cup fresh dill (coarsely chopped), 1 tsp sea salt, 1/2 tsp garlic powder.

Step-by-Step Instructions:

1. Place thinly sliced cucumbers and yellow onion into a large serving dish.
2. Whisk white wine vinegar, olive oil, garlic powder, and sea salt in a bowl.
3. Add coarsely chopped fresh dill directly to sliced vegetables.
4. Pour vinegar marinade over vegetables and toss gently using salad tongs.
5. Let marinate at room temperature for 15 minutes before serving.

9. Spicy Jalapeño Vinegar Cucumber and Red Onion Salad

Ingredients: 2 English cucumbers (sliced), 1 red onion (sliced), 1 large jalapeño (seeded and sliced into thin rings), 1/2 cup white vinegar, 1/4 cup lime juice, 1 tbsp honey, 1 tsp salt.

Step-by-Step Instructions:

1. Combine sliced cucumbers, red onion half-rings, and jalapeño rings in a bowl.
2. In a measuring glass, stir white vinegar, fresh lime juice, honey, and salt until dissolved.
3. Pour spicy lime-vinegar brine over vegetables.
4. Stir mixture well to submerge sliced jalapeños completely.
5. Chill in refrigerator for 30 minutes to allow spicy heat to infuse the brine.

10. Mediterranean Red Wine Vinegar Cucumber Onion Salad

Ingredients: 2 English cucumbers (diced), 1 red onion (diced), 1 cup cherry tomatoes (halved), 1/3 cup red wine vinegar, 1/4 cup extra virgin olive oil, 1 tsp dried oregano, salt, pepper.

Step-by-Step Instructions:

1. Combine diced English cucumbers, diced red onion, and halved cherry tomatoes in a large bowl.
2. Whisk red wine vinegar, extra virgin olive oil, dried oregano, salt, and black pepper.
3. Pour vinaigrette over fresh vegetable mixture.
4. Toss thoroughly so red wine vinegar coats tomatoes, cucumbers, and onions.
5. Serve cold as a fresh Mediterranean side dish alongside grilled meats.

11. Whole30 Marinated Cucumber Onion and Vinegar Salad

Ingredients: 2 English cucumbers (sliced), 1/2 sweet onion (sliced), 1/2 cup raw apple cider vinegar, 2 tbsp extra virgin olive oil, 1 tsp sea salt, 1/2 tsp black pepper, 2 tbsp fresh parsley (chopped).

Step-by-Step Instructions:

1. Place sliced cucumbers and sweet onion inside a sealable glass bowl.
2. Whisk raw apple cider vinegar, extra virgin olive oil, sea salt, and black pepper together.
3. Pour vinegar dressing over cucumbers and onions.
4. Mix chopped fresh parsley into salad until distributed evenly.
5. Cover and chill in refrigerator for 30 minutes prior to serving.

12. Garlic Infused Vinegar Cucumber and Onion Salad

Ingredients: 2 cucumbers (sliced), 1 white onion (sliced), 3 garlic cloves (minced or crushed), 1/2 cup white vinegar, 1/4 cup water, 1 tbsp sugar, 1 tsp salt, 1/2 tsp black pepper.

Step-by-Step Instructions:

1. Add crushed garlic cloves, white vinegar, water, sugar, salt, and pepper to a small bowl and whisk.
2. Let garlic brine rest for 5 minutes so garlic flavor infuses into vinegar liquid.
3. Place sliced cucumbers and white onion into a wide container.
4. Strain or pour garlic-infused brine directly over sliced vegetables.
5. Cover and refrigerate for 1 hour to allow garlic flavor to permeate cucumber slices.

13. Overnight Marinated Cucumber Onion Vinegar Salad

Ingredients: 3 seedless cucumbers (sliced), 1 large sweet Vidalia onion (sliced), 3/4 cup white vinegar, 1/2 cup water, 2 tbsp sugar, 1.5 tsp salt, 1 tsp mustard seeds, 2 tbsp dill.

Step-by-Step Instructions:

1. Layer sliced cucumbers and Vidalia onion rings alternately inside a large mason jar or sealable vessel.
2. Whisk white vinegar, water, sugar, salt, mustard seeds, and fresh dill in a jug.
3. Pour brine over packed vegetables until liquid reaches top rim of jar.
4. Seal jar tightly and shake gently to distribute mustard seeds and dill.
5. Refrigerate overnight (8–12 hours) to maximize crunch and tangy pickle flavor.

14. 5-Ingredient Italian Vinegar Cucumber and Onion Salad

Ingredients: 2 English cucumbers (sliced), 1 red onion (thinly sliced), 1/3 cup white balsamic vinegar (or white wine vinegar), 2 tbsp olive oil, 1.5 tsp dried Italian seasoning blend, salt.

Step-by-Step Instructions:

1. Add sliced English cucumbers and red onion into a salad bowl.
2. Whisk white balsamic vinegar, olive oil, dried Italian seasoning, and salt together.
3. Drizzle Italian vinegar marinade over fresh cucumbers and red onions.
4. Toss with tongs for 30 seconds until seasonings coat all slices.
5. Serve immediately at room temperature or chilled.

15. Crunchy Cracked Cucumber Onion and Red Wine Vinegar Salad

Ingredients: 4 Persian cucumbers, 1/2 red onion (thinly sliced), 1/3 cup red wine vinegar, 2 tbsp extra virgin olive oil, 1 tsp flaky sea salt, 1/2 tsp cracked coarse black pepper.

Step-by-Step Instructions:

1. Place Persian cucumbers on a cutting board and smack gently with flat side of a chef’s knife until they crack.
2. Chop cracked cucumbers into bite-sized jagged pieces and transfer to bowl with sliced red onion.
3. Pour red wine vinegar and extra virgin olive oil over cracked cucumber pieces.
4. Season generously with flaky sea salt and cracked black pepper.
5. Toss well, allowing vinegar dressing to settle into cracked crevices, and serve immediately.