How To Make Pickled Red Onions In Minutes
How To Make Pickled Red Onions In Minutes! is a easy American recipe that serves 4. 15 calories per serving. Recipe by Ela Vegan on YouTube.
Prep: 10 min | Cook: 5 min | Total: 20 min
Cost: $1.48 total, $0.37 per serving
Ingredients
- 1 large Red Onion (thinly sliced into rings or half‑moons)
- 1/2 cup Apple Cider Vinegar (unfiltered, raw preferred for flavor)
- 1/2 cup Water (room temperature)
- 1 tablespoon Granulated Sugar (balances acidity)
- 1 teaspoon Salt (preferably kosher or sea salt)
- 1/2 teaspoon Black Peppercorns (whole, for subtle spice)
- 1/2 teaspoon Mustard Seeds (optional, adds texture)
Instructions
Slice the Onion
Trim the root end off the red onion, halve it, and slice into thin rings or half‑moon pieces about 1‑2 mm thick.
Time: PT5M
Prepare the Brine
In a small saucepan combine the apple cider vinegar, water, sugar, salt, peppercorns, and mustard seeds. Stir and bring to a gentle boil, stirring until sugar and salt dissolve.
Time: PT5M
Temperature: Medium heat
Pack the Onions
Place the sliced onions tightly into the clean glass jar, leaving about 1 cm of headspace at the top.
Time: PT2M
Add the Hot Brine
Carefully pour the hot brine over the onions, ensuring they are fully submerged. Tap the jar gently to release any trapped bubbles.
Time: PT2M
Cool and Refrigerate
Let the jar sit at room temperature for about 10 minutes, then seal with the lid and transfer to the refrigerator. The onions are ready to eat after 15‑20 minutes, but develop more flavor after a few hours.
Time: PT10M
Nutrition Facts
- Calories
- 15
- Protein
- 0 g
- Carbohydrates
- 4 g
- Fat
- 0 g
- Fiber
- 1 g
Dietary info: Vegan, Vegetarian, Gluten-Free, Dairy-Free, Nut-Free
Ingredient Substitutions
- Instead of Red Onion: Purple onion, Sweet onion
- Instead of Apple Cider Vinegar: White wine vinegar, Rice vinegar
- Instead of Granulated Sugar: Maple syrup (reduce liquid by 1 tsp), Agave nectar (reduce liquid by 1 tsp)
- Instead of Salt: Soy sauce (reduce sugar), Tamari
- Instead of Black Peppercorns: Crushed red pepper flakes, Whole coriander seeds
- Instead of Mustard Seeds: Cumin seeds, Whole fennel seeds
Equipment Needed
- Knife
- Cutting Board
- Small Saucepan
- Measuring Cups
- Measuring Spoons
- Glass Jar with Lid
- Wooden Spoon
Critical Steps — Do Not Skip
- Slice the onion thinly for quick pickling.
- Bring the brine to a gentle boil to dissolve sugar and salt fully.
- Pour hot brine over onions while they are still in the jar to ensure proper pickling.
Chef Tips from the Video
- Use a mandoline for uniform thin slices.
- Sterilize the jar by boiling it for 5 minutes before use.
- Add a small slice of jalapeño or a pinch of smoked paprika for extra flavor.
Troubleshooting
Onions are still crunchy after a day.
Let the jar sit longer in the refrigerator; the acidity will continue to soften the onions.
The pickles taste too sour.
Add a pinch more sugar or reduce the vinegar by 1‑2 tablespoons in the next batch.
Onions float and stay partially exposed.
Press them down firmly before adding the brine, or add a small clean weight (e.g., a sterilized glass pebble).
Storage
Refrigerator: Up to 2 weeks in a sealed jar.
Freezer: Not recommended; texture degrades.
Room temperature: Do not store at room temperature; keep refrigerated.
Make-Ahead Tips
- Pickled onions can be made up to 2 weeks ahead; keep refrigerated.
- For a milder flavor, reduce the vinegar to 1/3 cup and increase water to 2/3 cup.
Frequently Asked Questions
What is the cultural significance and history of pickled red onions in Mexican‑American cuisine?
Pickled red onions are a staple topping in Mexican‑American street food, adding bright acidity to tacos, burritos, and tortas. Their quick‑pickling method dates back to traditional Mexican escabeche, where vegetables are preserved in vinegar for flavor and shelf‑life.
What are the traditional regional variations of pickled red onions in Mexican cuisine?
In northern Mexico, pickled onions often include lime juice and chili powder, while in Oaxaca they may feature fermented corn masa. The basic vinegar‑sugar‑salt brine remains the same, but spices vary by region.
How are pickled red onions traditionally served with tacos in Mexico?
They are typically placed on top of the meat or fish as a fresh, crunchy contrast, sometimes accompanied by cilantro and a squeeze of lime. The acidity cuts through rich fillings and balances the heat of salsa.
What occasions or celebrations feature pickled red onions in Mexican‑American culture?
Pickled red onions appear at casual gatherings like taco nights, street‑food festivals, and family barbecues. They are also common on brunch menus featuring avocado toast or huevos rancheros.
What other Mexican‑American dishes pair well with pickled red onions?
They complement grilled fish tacos, carne asada, chicken fajitas, burrito bowls, and even salads with black beans and corn. Their bright flavor also works on avocado toast and veggie wraps.
What makes pickled red onions special in vegan cooking?
They provide a burst of umami, acidity, and texture without any animal products, making them an essential condiment for vegan tacos, sandwiches, and grain bowls. The quick‑pickling method keeps them fresh and vibrant.
What are the authentic traditional ingredients for pickled red onions versus acceptable substitutes?
Traditionally the brine uses apple cider or white wine vinegar, sugar, salt, and whole spices like peppercorns and mustard seeds. Substitutes can include rice vinegar, maple syrup, or soy sauce, but they will alter the flavor profile slightly.
How does the YouTube channel Ela Vegan specialize in cooking?
The YouTube channel Ela Vegan focuses on plant‑based, whole‑food recipes that are simple, affordable, and made with everyday pantry ingredients. Ela emphasizes quick meals, meal‑prep tips, and vegan twists on classic comfort foods.
What is the cooking philosophy and style of the YouTube channel Ela Vegan?
Ela Vegan’s philosophy is to make vegan cooking accessible to beginners by using minimal equipment, clear step‑by‑step instructions, and budget‑friendly ingredients. The style is relaxed, with a focus on flavor and nutrition rather than elaborate plating.
What are the most common mistakes to avoid when making pickled red onions?
Common mistakes include using too much vinegar (making the onions overly sour), not fully dissolving sugar and salt, and letting the onions sit at room temperature for too long before refrigerating, which can lead to spoilage.
Why does this pickled red onion recipe use a hot brine instead of a cold brine?
A hot brine quickly dissolves the sugar and salt and helps the onions absorb the flavors faster, reducing the overall pickling time to minutes rather than days.
Can I make pickled red onions ahead of time and how should I store them?
Yes, they can be made up to two weeks in advance. Store the sealed jar in the refrigerator; label with the date. The flavor improves after a few hours, and they stay crisp for the full storage period.
Last updated: September 1, 2026
