Keto Cucumber Onion Salad with Vinegar – A Classic, Sugar-Free Side
This Keto Cucumber Onion Salad is a light, refreshing, and tangy side dish made with crisp pickling cucumbers, thinly sliced red onions, and a simple vinegar-based dressing. Naturally low-carb, sugar-free, and full of flavor, this salad comes together in minutes and tastes even better after marinating. Perfect for summer cookouts, BBQs, or meal prep!
Servings: 6 1 cup
Calories: 46kcal
Ingredients
- 6 pickling cucumbers thinly sliced
- ¾ red onion thinly sliced
- ½ cup apple cider vinegar or white vinegar, or red wine vinegar,
- ¼ cup water
- 1 ½ tablespoons keto-friendly powdered sweetener monk fruit, erythritol, or allulose – adjust to taste
- 1 teaspoon fine sea salt
- ½ teaspoon ground black pepper optional
Instructions
- Wash and dry the pickling cucumbers, then slice them into thin rounds.
- Peel and thinly slice ¾ of a red onion into half-moons or rings.
- If you prefer a milder onion flavor, soak the slices in cold water for 10 minutes before using.
- In a medium bowl, whisk together the apple cider vinegar, water, keto-friendly sweetener, salt, and black pepper until the sweetener fully dissolves.
- Add the sliced cucumbers and onions to a large mixing bowl.
- Pour the vinegar dressing over the top.
- Toss everything together until the cucumbers and onions are well coated.
- Cover the bowl and refrigerate for at least 30 minutes to 1 hour to let the flavors meld.
- The longer it sits, the better it tastes! For the best flavor, let it chill for a few hours or overnight.
- Give the salad a quick stir before serving to redistribute the dressing.
- Enjoy chilled as a refreshing, low-carb side dish!
Notes
- For Milder Onions: Soak the sliced onions in cold water for 10 minutes before adding them to the salad. This reduces their sharpness.
- Sweetener: You can use granulated sweetener, but it may need extra stirring to dissolve.
- Marinating Time: The longer the salad sits, the better it tastes! It’s best after at least 1 hour, but overnight is even better.
Storage: Store in an airtight container in the refrigerator for up to 3-4 days. Stir before serving. - Add Some Crunch: Try adding sliced radishes or chopped celery for extra texture.
- Make It Creamy: Stir in a spoonful of mayo or sour cream for a creamy cucumber salad twist.
Nutrition
Serving: 1cup | Calories: 46kcal | Carbohydrates: 8g | Protein: 2g | Fat: 0.5g | Saturated Fat: 0.05g | Polyunsaturated Fat: 0.01g | Monounsaturated Fat: 0.01g | Sodium: 396mg | Potassium: 445mg | Fiber: 2g | Sugar: 5g | Vitamin A: 217IU | Vitamin C: 11mg | Calcium: 48mg | Iron: 1mg
