If you’re searching for the best pickled onion recipe, you’ve come to the right place. These tangy, vibrant onions add an instant burst of flavor to any dish — from tacos and sandwiches to salads and grain bowls. The beauty of this recipe lies in its simplicity: just a few pantry ingredients, a jar, and about 10 minutes of prep time. Whether you’re a pickling beginner or a kitchen pro, this quick pickled onion recipe will become a staple in your fridge.
Ingredients
Here’s what you’ll need for this simple and flavorful pickled onion recipe:
- 2 medium red onions, thinly sliced
- 1 cup white vinegar (or apple cider vinegar for milder flavor)
- 1 cup water
- 2 tablespoons granulated sugar
- 1 tablespoon kosher salt
- Optional flavor add-ins:
- 1 teaspoon black peppercorns
- 1 clove garlic, sliced
- ½ teaspoon mustard seeds
- A pinch of red chili flakes
- Fresh herbs (like thyme or dill)
Step-by-Step Instructions
- Prepare the onions:
Peel and slice the red onions into thin rings or half-moons. Use a sharp knife or mandoline for even cuts. - Make the brine:
In a small saucepan, combine vinegar, water, sugar, and salt. Heat over medium heat until the sugar and salt dissolve completely. Do not boil. - Add flavorings:
Stir in any optional spices, herbs, or garlic for extra flavor depth. - Combine onions and brine:
Place the sliced onions in a clean glass jar. Carefully pour the warm brine over the onions until they’re fully submerged. - Cool and refrigerate:
Let the jar sit uncovered until it reaches room temperature. Seal it with a lid and refrigerate for at least 30 minutes before serving (best after 2–3 hours). - Enjoy!
These pickled onions will keep for up to 2 weeks in the refrigerator.
Nutrition Facts
| Nutrient | Per Serving |
| Calories | 25 kcal |
| Protein | 0.3 g |
| Carbohydrates | 5.6 g |
| Fat | 0 g |
| Fiber | 0.7 g |
(Values are approximate and may vary depending on ingredients used.)
Tips & Variations
- Use different vinegars: Try red wine vinegar or rice vinegar for unique flavor profiles.
- Add sweetness: Mix in a teaspoon of honey or maple syrup for a sweet-tangy twist.
- Make it spicy: Add sliced jalapeños or chili flakes for heat.
- Change the color: Use yellow or white onions for a milder taste or shallots for a gourmet touch.
- Try citrus brine: Substitute some water with lime or orange juice for a refreshing zing.
Serving Suggestions
Pickled onions are incredibly versatile! Here are some delicious ways to serve them:
- Tacos: Add to carnitas, fish tacos, or veggie tacos for tangy crunch.
- Burgers and sandwiches: Perfect on pulled pork, grilled chicken, or veggie burgers.
- Salads: Toss into grain bowls or leafy greens for a flavor pop.
- Charcuterie boards: Serve alongside cheese, olives, and cured meats.
- Breakfast dishes: Top your avocado toast, omelets, or bagels with pickled onions.
FAQs
1. How long do pickled onions last?
They stay fresh for up to 2 weeks in the refrigerator if stored in a sealed glass jar.
2. Can I use white onions instead of red?
Yes! White or yellow onions work too, though red onions give a beautiful pink hue and milder taste.
3. Can I reuse the pickling brine?
You can reuse it once for another batch of onions within a week, but the flavor may be slightly weaker.
4. Do I need to sterilize the jars?
Since these are refrigerator pickles (not canned), sterilizing isn’t required — just make sure your jar is clean and dry.
Conclusion
This easy pickled onion recipe delivers crisp, tangy, and slightly sweet onions that elevate any dish. With minimal effort, you can create a jar of vibrant flavor that adds color and zest to your meals. Whether you’re topping tacos or refreshing your salads, these homemade pickled onions are a must-have condiment in every kitchen.
