Pickled Red Onions
Pickled red onions are a vibrant and tangy addition to your culinary repertoire. Their crisp texture and sharp flavor can transform any dish, from tacos to salads, adding a delightful crunch and a burst of color. This easy recipe allows you to create a jar of these delicious onions quickly, ensuring you always have a tasty topping on hand. Let’s dive into the ingredients and the simple steps to achieve this mouthwatering condiment.
Ingredients

- 2 large red onions, thinly sliced
- 1 cup apple cider vinegar
- 1 cup water
- 2 tablespoons sugar
- 1 tablespoon salt
- 1 teaspoon black peppercorns (optional)
- 1 teaspoon mustard seeds (optional)
- 1 bay leaf (optional)
Servings and Cooking Time
This recipe makes approximately 2 cups of pickled red onions, perfect for several servings. Preparation time is about 10 minutes, with an additional 30 minutes for marinating.
Nutritional Value
The nutritional value per serving (1/4 cup) includes approximately 40 calories, 0g fat, 10g carbohydrates, 1g fiber, and 1g protein. This is a low-calorie condiment that adds flavor without extra calories.
Step-by-Step Cooking Process
- Prepare the red onions by peeling and slicing them thinly.
- In a medium saucepan, combine apple cider vinegar, water, sugar, and salt.
- Heat the mixture over medium heat, stirring until the sugar and salt dissolve.
- Add optional peppercorns, mustard seeds, and bay leaf to the mixture.
- Once the mixture reaches a simmer, remove it from heat.
- Place the sliced onions in a clean glass jar.
- Pour the hot vinegar mixture over the onions, ensuring they are fully submerged.
- Let the jar cool to room temperature.
- Seal the jar and refrigerate for at least 30 minutes before using.
- The pickled onions can be stored in the refrigerator for up to 2 weeks.

Alternative Ingredients
If you don’t have apple cider vinegar, you can use white vinegar or red wine vinegar for a different flavor profile. Additionally, you can experiment with different spices like dill or garlic to personalize the taste.
Serving and Pairings
Pickled red onions are fantastic on tacos, sandwiches, salads, or even burgers. They add a zesty kick that complements rich flavors, making them versatile for various dishes.
Storage and Reheating
Store pickled red onions in a sealed jar in the refrigerator. They will keep for up to two weeks. No reheating is required; simply use them cold as a topping.
Cooking Mistakes
- Overcooking the vinegar mixture may result in a bitter taste.
- Not slicing the onions thinly can lead to uneven pickling.
- Forgetting to dissolve the sugar and salt completely can affect flavor.
- Using a non-sterilized jar can lead to spoilage.
- Not letting the onions sit long enough for flavor development.
Helpful Tips
- Experiment with different vinegar types for unique flavors.
- Add chili flakes for a spicy kick.
- Try adding other vegetables like carrots or cucumbers.
- Use a mandoline for perfectly even onion slices.

FAQs
How long do pickled red onions last?
Pickled red onions can last up to two weeks when stored in the refrigerator in a sealed jar.
Can I use other types of onions?
Yes, you can experiment with other onions like white or yellow, but red onions provide the best color and flavor.
Are pickled red onions healthy?
Yes, they are low in calories and provide a source of probiotics if fermented properly, making them a healthy condiment choice.
Can I freeze pickled red onions?
Freezing is not recommended as it can change the texture. It’s best to keep them refrigerated.
What dishes pair well with pickled red onions?
They pair excellently with tacos, sandwiches, salads, and even grilled meats, adding a tangy crunch to each bite.
Conclusion
Pickled red onions are an easy and delicious way to enhance your meals. With just a few ingredients and simple steps, you can create this vibrant condiment that adds flavor and color to a variety of dishes. Enjoy experimenting with your own variations!

Pickled Red Onions
Ingredients
- 2 large red onions thinly sliced
- 1 cup apple cider vinegar
- 1 cup water
- 2 tablespoons sugar
- 1 tablespoon salt
- 1 teaspoon black peppercorns optional
- 1 teaspoon mustard seeds optional
- 1 bay leaf optional
Instructions
- Prepare the red onions by peeling and slicing them thinly.
- In a medium saucepan, combine apple cider vinegar, water, sugar, and salt.
- Heat the mixture over medium heat, stirring until the sugar and salt dissolve.
- Add optional peppercorns, mustard seeds, and bay leaf to the mixture.
- Once the mixture reaches a simmer, remove it from heat.
- Place the sliced onions in a clean glass jar.
- Pour the hot vinegar mixture over the onions, ensuring they are fully submerged.
- Let the jar cool to room temperature.
- Seal the jar and refrigerate for at least 30 minutes before using.
- The pickled onions can be stored in the refrigerator for up to 2 weeks.