25 Easy Cucumber, Onion, and Vinegar Recipes: The Ultimate Crispy Side Dish Guide

Nothing beats the crisp, refreshing crunch of a cucumber, onion, and vinegar salad on a hot day or paired with a heavy meal. This timeless dish is low in calories, budget-friendly, highly customizable, and comes together in minutes. Whether you are searching for Grandma’s old-fashioned southern staple, a low-carb keto-friendly lunch, or a spicy Asian-inspired twist, this ultimate collection covers every variation you will ever need.

Below is your comprehensive step-by-step guide to making 25 distinct and delicious cucumber, onion, and vinegar salad recipes.

1. Old-Fashioned Cucumber Onion Vinegar Salad

• Prep time: 10 mins | Chilling time: 30 mins | Servings: 4
• Ingredients: 2 large English cucumbers (thinly sliced), 1 sweet Vidalia onion (thinly sliced), 1/2 cup white vinegar, 1/2 cup water, 2 tbsp granulated sugar, 1 tsp salt, 1/2 tsp black pepper.
• Step-by-Step Instructions:
  1. Place sliced cucumbers and sweet onions in a large glass bowl or ceramic dish.
  2. In a measuring cup, whisk white vinegar, water, sugar, salt, and black pepper until sugar dissolves.
  3. Pour the liquid mixture directly over the cucumbers and onions.
  4. Toss gently to ensure all vegetables are completely submerged in the brine.
  5. Cover and refrigerate for at least 30 minutes before serving crisp and cold.

2. 10-Minute Quick Cucumber Onion Salad in Vinegar

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 Persian cucumbers (sliced into rounds), 1/2 red onion (thinly sliced), 1/3 cup apple cider vinegar, 1 tbsp olive oil, 1 tsp honey, 1/2 tsp sea salt.
• Step-by-Step Instructions:
  1. Add sliced cucumbers and red onions into a serving bowl.
  2. Whisk apple cider vinegar, olive oil, honey, and sea salt in a small bowl.
  3. Drizzle the dressing over the vegetables.
  4. Toss vigorously for 1 minute to break down the raw bite of the onions.
  5. Serve immediately for an instant, crunchy side dish.

3. Southern-Style Cucumbers Onions and Vinegar

• Prep time: 10 mins | Chilling time: 1 hour | Servings: 6
• Ingredients: 3 slicing cucumbers (peeled and sliced thin), 1 yellow onion (sliced thin), 3/4 cup distilled white vinegar, 1/3 cup sugar, 1/2 cup water, 1 tsp salt, 1 tsp coarse black pepper.
• Step-by-Step Instructions:
  1. Layer cucumbers and yellow onions alternately in a deep bowl.
  2. Whisk white vinegar, sugar, water, salt, and black pepper together until smooth.
  3. Pour brine over the layers.
  4. Weight down the vegetables with a small plate so they stay submerged.
  5. Chill in the refrigerator for 1 hour to soak up the sweet Southern brine.

4. Low-Carb Keto Cucumber Onion Vinegar Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 English cucumbers (sliced), 1/2 red onion (sliced), 1/2 cup apple cider vinegar, 1/4 cup water, 1 tsp liquid stevia or monk fruit sweetener, 1 tsp sea salt, 1/2 tsp garlic powder.
• Step-by-Step Instructions:
  1. Combine sliced cucumbers and onions in a bowl.
  2. Mix apple cider vinegar, water, liquid monk fruit sweetener, sea salt, and garlic powder in a cup.
  3. Pour mixture over the vegetables.
  4. Stir well to distribute the sugar-free marinade.
  5. Let sit at room temperature for 10 minutes or chill before serving.

5. Cucumber Onion Dill Salad in Vinegar

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 long cucumbers (sliced thin), 1/2 white onion (sliced thin), 1/4 cup fresh dill (chopped), 1/2 cup white wine vinegar, 1 tbsp sugar, 1 tsp salt.
• Step-by-Step Instructions:
  1. Place sliced cucumbers and onions into a glass bowl.
  2. Add chopped fresh dill on top.
  3. Whisk white wine vinegar, sugar, and salt together until dissolved.
  4. Pour over vegetables and dill; toss gently to combine.
  5. Serve cold as a fresh, herbaceous accompaniment to fish or chicken.

6. Crunchy Marinated Cucumbers and Red Onions

• Prep time: 10 mins | Chilling time: 4 hours | Servings: 6
• Ingredients: 3 English cucumbers (sliced), 1 large red onion (sliced into rings), 1 cup white vinegar, 1/2 cup water, 3 tbsp sugar, 1.5 tsp coarse salt.
• Step-by-Step Instructions:
  1. Pack sliced cucumbers and red onion rings tightly into a large glass mason jar.
  2. Whisk white vinegar, water, sugar, and coarse salt in a bowl until clear.
  3. Pour liquid into jar until all veggies are covered.
  4. Seal jar firmly with a lid and shake well.
  5. Refrigerate for at least 4 hours (or overnight) for extra crunch.

7. Sweet and Tangy Cucumber Tomato Onion Salad

• Prep time: 15 mins | Servings: 6
• Ingredients: 2 cucumbers (sliced), 2 medium ripe tomatoes (chopped), 1/2 red onion (sliced), 1/3 cup red wine vinegar, 2 tbsp extra virgin olive oil, 1 tsp Italian seasoning, 1 tsp salt.
• Step-by-Step Instructions:
  1. Combine cucumbers, chopped ripe tomatoes, and sliced red onions in a salad bowl.
  2. Whisk red wine vinegar, olive oil, Italian seasoning, and salt together.
  3. Pour dressing over salad gently to avoid crushing the tomatoes.
  4. Toss lightly until coated evenly.
  5. Serve chilled or at room temperature.

8. Japanese Sunomono Cucumber and Onion Salad

• Prep time: 10 mins | Servings: 2
• Ingredients: 2 Japanese or Persian cucumbers (sliced paper-thin), 1/4 white onion (sliced paper-thin), 3 tbsp unseasoned rice vinegar, 1 tbsp sugar, 1/2 tsp soy sauce, 1 tsp toasted sesame seeds, 1/2 tsp salt.
• Step-by-Step Instructions:
  1. Sprinkle sliced cucumbers and onions with 1/2 tsp salt; let sit in a colander for 5 minutes, then gently squeeze out excess water.
  2. In a bowl, whisk rice vinegar, sugar, and soy sauce until sugar dissolves.
  3. Add squeezed cucumbers and onions to the dressing and toss.
  4. Garnish generously with toasted sesame seeds before serving.

9. Quick Pickled Cucumbers and Red Onions

• Prep time: 10 mins | Rest time: 20 mins | Servings: 4
• Ingredients: 2 medium cucumbers (sliced), 1 red onion (sliced), 1/2 cup red wine vinegar, 1/2 cup water, 1 tbsp sugar, 1 tsp salt, 1/2 tsp crushed red pepper.
• Step-by-Step Instructions:
  1. Place sliced cucumbers and red onions in a shallow dish.
  2. Combine red wine vinegar, water, sugar, salt, and red pepper flakes in a small saucepan.
  3. Heat over medium heat just until warm and sugar dissolves (do not boil).
  4. Pour warm brine over vegetables.
  5. Let sit at room temperature for 20 minutes before serving as a side or burger topping.

10. 5-Ingredient Cucumber Onion Vinegar Salad

• Prep time: 5 mins | Servings: 4
• Ingredients: 2 large cucumbers (sliced), 1 sweet yellow onion (sliced), 1/2 cup distilled white vinegar, 2 tbsp sugar, 1 tsp salt.
• Step-by-Step Instructions:
  1. Slice cucumbers and yellow onion directly into a bowl.
  2. Add white vinegar, sugar, and salt over top.
  3. Stir all ingredients together for 1-2 minutes until sugar dissolves in vinegar.
  4. Serve immediately or store in fridge.

11. Creamy Vinegar Cucumber and Red Onion Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 cucumbers (thinly sliced), 1/2 red onion (thinly sliced), 3 tbsp sour cream (or Greek yogurt), 2 tbsp white vinegar, 1 tsp sugar, 1/2 tsp garlic powder, salt and pepper.
• Step-by-Step Instructions:
  1. In a mixing bowl, whisk sour cream, white vinegar, sugar, garlic powder, salt, and pepper until smooth.
  2. Add sliced cucumbers and red onions to the dressing.
  3. Fold together until vegetables are fully coated in creamy vinegar mixture.
  4. Chill for 15 minutes before serving.

12. Spicy Garlic Cucumber Onion Vinegar Salad

• Prep time: 10 mins | Servings: 3
• Ingredients: 2 English cucumbers (smashed and chopped), 1/2 red onion (sliced), 2 cloves minced garlic, 3 tbsp black or rice vinegar, 1 tbsp chili oil, 1 tsp sugar, 1/2 tsp salt.
• Step-by-Step Instructions:
  1. Gently smash cucumbers with a rolling pin and chop into bite-sized pieces; place in bowl with onions.
  2. Mix minced garlic, black vinegar, chili oil, sugar, and salt in a small dish.
  3. Pour spicy dressing over smashed cucumbers and onions.
  4. Toss thoroughly and serve immediately.

13. Grandma’s Classic Cucumber Onion Vinegar Salad

• Prep time: 10 mins | Chilling time: 2 hours | Servings: 6
• Ingredients: 3 field cucumbers (peeled and sliced), 1 Vidalia onion (sliced), 1/2 cup white vinegar, 1/2 cup water, 1/3 cup white sugar, 1 tsp celery seed, 1 tsp salt.
• Step-by-Step Instructions:
  1. Combine sliced cucumbers and onions in a large glass dish.
  2. Whisk together white vinegar, water, sugar, celery seed, and salt until clear.
  3. Pour dressing over veggies.
  4. Cover tightly with plastic wrap and chill in refrigerator for 2 hours.
  5. Stir once before serving cold.

14. Apple Cider Vinegar Cucumber and Red Onion Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 English cucumbers (sliced), 1/2 red onion (sliced), 1/2 cup raw unfiltered apple cider vinegar, 2 tbsp honey, 1/4 cup water, 1 tsp sea salt.
• Step-by-Step Instructions:
  1. Place cucumbers and red onions in a bowl.
  2. Whisk raw apple cider vinegar, honey, water, and sea salt together until honey fully dissolves.
  3. Pour over cucumbers and onions.
  4. Toss well and let stand 15 minutes for flavors to fuse.

15. Spiralized Cucumber and Onion Salad in Vinegar

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 long English cucumbers (spiralized), 1/2 red onion (sliced paper-thin), 1/3 cup white wine vinegar, 1 tbsp agave nectar, 1 tbsp olive oil, salt and pepper.
• Step-by-Step Instructions:
  1. Spiralize cucumbers using a medium blade; place noodles in bowl with onions.
  2. Whisk white wine vinegar, agave nectar, olive oil, salt, and pepper together.
  3. Drizzle over cucumber noodles and onions.
  4. Toss using tongs to distribute dressing evenly throughout noodles.

16. German Cucumber Salad with Vinegar (Gurkensalat)

• Prep time: 15 mins | Rest time: 15 mins | Servings: 4
• Ingredients: 2 English cucumbers (sliced razor-thin), 1/2 small white onion (minced fine), 3 tbsp white vinegar, 1 tbsp sunflower oil, 1 tsp sugar, 2 tbsp fresh chopped dill, salt.
• Step-by-Step Instructions:
  1. Place sliced cucumbers in a bowl, sprinkle with 1 tsp salt, and let sit for 15 minutes.
  2. Drain extracted water thoroughly.
  3. Add minced onion, white vinegar, sunflower oil, sugar, and fresh dill.
  4. Mix gently and serve cool.

17. Meal Prep Cucumber Onion Vinegar Salad Bowls

• Prep time: 15 mins | Servings: 5 (Jars)
• Ingredients: 4 English cucumbers (sliced), 2 red onions (sliced), 1.5 cups white vinegar, 1 cup water, 1/2 cup sugar, 1 tbsp salt, 1 tbsp peppercorns.
• Step-by-Step Instructions:
  1. Whisk white vinegar, water, sugar, and salt in a bowl until dissolved.
  2. Divide peppercorns, sliced cucumbers, and red onions evenly among 5 glass mason jars.
  3. Pour vinegar brine into each jar, leaving 1/2 inch headspace.
  4. Seal lids tightly and store in refrigerator for up to 7 days.

18. Spicy Chili Flake Cucumber Onion Vinegar Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 cucumbers (sliced), 1 red onion (sliced), 1/3 cup white vinegar, 1 tsp red pepper flakes, 1 tsp sugar, 1 tsp salt, 1/2 tsp onion powder.
• Step-by-Step Instructions:
  1. Combine cucumbers and red onion in a bowl.
  2. Whisk white vinegar, red pepper flakes, sugar, salt, and onion powder in a cup.
  3. Pour dressing over vegetables and stir well.
  4. Let sit for 10 minutes to allow pepper flakes to infuse liquid.

19. Mediterranean Cucumber Onion Chickpea Salad in Vinegar

• Prep time: 15 mins | Servings: 4
• Ingredients: 2 cucumbers (diced), 1/2 red onion (diced), 1 canned (15 oz) chickpeas (rinsed), 1/3 cup red wine vinegar, 2 tbsp olive oil, 1 tsp dried oregano, salt and pepper.
• Step-by-Step Instructions:
  1. In a large bowl, mix diced cucumbers, diced red onion, and rinsed chickpeas.
  2. Whisk red wine vinegar, olive oil, dried oregano, salt, and pepper together.
  3. Pour over salad and stir well.
  4. Serve as a protein-packed lunch or side dish.

20. Sugar-Free Apple Cider Vinegar Cucumber Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 cucumbers (sliced), 1/2 yellow onion (sliced), 1/2 cup apple cider vinegar, 1/4 cup water, 1/2 tsp monk fruit powder, 1 tsp salt, 1/2 tsp black pepper.
• Step-by-Step Instructions:
  1. Add cucumbers and yellow onions to a glass bowl.
  2. Whisk apple cider vinegar, water, monk fruit sweetener, salt, and pepper together.
  3. Pour over veggies and stir to coat.
  4. Chill 20 minutes before serving.

21. Thinly Sliced Mandoline Cucumber and Red Onion Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 English cucumbers, 1 red onion, 1/2 cup white vinegar, 1/3 cup sugar, 1 tsp sea salt.
• Step-by-Step Instructions:
  1. Using a mandoline slicer set to thin setting, carefully slice cucumbers and red onion into paper-thin rounds.
  2. Place paper-thin slices into a wide dish.
  3. Whisk white vinegar, sugar, and sea salt until dissolved.
  4. Pour over slices; notice how instantly the thin veggies absorb marinade. Serve cold.

22. Low-Calorie Cucumber Onion Vinegar Side Dish

• Prep time: 5 mins | Servings: 2
• Ingredients: 1 large cucumber (sliced), 1/4 white onion (sliced), 1/4 cup white vinegar, 1/4 cup water, pinch of salt, pinch of black pepper.
• Step-by-Step Instructions:
  1. Slice cucumber and onion directly into serving bowl.
  2. Add white vinegar, water, salt, and black pepper.
  3. Toss together and enjoy immediately as a light, hydrating, zero-fat snack.

23. Garlic Herb Cucumber and Sweet Onion Vinegar Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 cucumbers (sliced), 1 sweet Vidalia onion (sliced), 2 cloves minced garlic, 2 tbsp chopped parsley, 1/3 cup red wine vinegar, 1 tbsp olive oil, 1 tsp salt.
• Step-by-Step Instructions:
  1. Combine cucumbers, sweet onion, minced garlic, and fresh parsley in a bowl.
  2. Whisk red wine vinegar, olive oil, and salt in a cup.
  3. Pour dressing over salad and fold together.
  4. Serve alongside grilled meats or BBQ.

24. Red Wine Vinegar Cucumber and Red Onion Salad

• Prep time: 10 mins | Servings: 4
• Ingredients: 2 Persian cucumbers (sliced), 1/2 red onion (sliced into half-moons), 1/2 cup red wine vinegar, 1 tbsp sugar, 1 tsp salt, 1/2 tsp dried parsley.
• Step-by-Step Instructions:
  1. Add cucumbers and red onion half-moons into a bowl.
  2. Whisk red wine vinegar, sugar, salt, and dried parsley until blended.
  3. Pour over vegetables and toss gently.
  4. Chill 15 minutes to let onions turn pink from vinegar marinade.

25. 15-Minute Sweet & Sour Cucumber Onion Vinegar Salad

• Prep time: 15 mins | Servings: 4
• Ingredients: 2 long cucumbers (sliced), 1 white onion (sliced thin), 1/2 cup white vinegar, 1/3 cup granulated sugar, 1 tsp salt, 1/2 tsp paprika.
• Step-by-Step Instructions:
  1. Place sliced cucumbers and white onions into a glass dish.
  2. In a small bowl, whisk white vinegar, sugar, salt, and paprika until smooth and dissolved.
  3. Pour sweet and sour dressing over veggies.
  4. Let sit at room temperature for 15 minutes before serving to let flavors balance out.