The Easiest Pickled Onions
The Easiest Pickled Onions is a easy American recipe that serves 4. 15 calories per serving. Recipe by Mathew Rago | Recipes and More! on YouTube.
Prep: 10 min | Cook: 5 min | Total: 25 min
Cost: $2.04 total, $0.51 per serving
Ingredients
- 2 medium Red Onion (peeled and sliced thin with the grain)
- 1 cup White Distilled Vinegar (for the pickling brine)
- 1 cup Water (room temperature)
- 1 tablespoon Granulated Sugar (helps balance acidity)
- 1 tablespoon Salt (regular table salt or kosher salt)
Instructions
Prepare the onions
Peel the two red onions and slice them thinly, cutting with the grain (parallel to the layers) to keep them crisp.
Time: PT5M
Pack the onions
Place the sliced onions into a clean glass jar or deli container, pressing them down with a spoon or fork so they fit tightly.
Time: PT2M
Make the pickling brine
In a small saucepan combine 1 cup vinegar, 1 cup water, 1 tablespoon sugar, and 1 tablespoon salt. Bring to a gentle simmer, stirring until the sugar and salt are fully dissolved.
Time: PT5M
Temperature: simmer
Add brine to the onions
Remove the saucepan from heat. While the brine is still warm, pour it over the onions in the jar, ensuring they are completely submerged. Press the onions down with a spoon or fork, then seal the lid tightly.
Time: PT2M
Refrigerate
Place the sealed jar in the refrigerator for at least 2 hours before using. The onions will become tangy and slightly softened while retaining a nice crunch.
Time: PT2H
Serve
Use the pickled red onions as a topping for tacos, burgers, salads, sandwiches, or any dish that needs a bright, acidic bite.
Time: PT0M
Nutrition Facts
- Calories
- 15
- Protein
- 0g
- Carbohydrates
- 4g
- Fat
- 0g
- Fiber
- 1g
Dietary info: Vegan, Vegetarian, Gluten-Free, Dairy-Free
Ingredient Substitutions
- Instead of Red Onion: Shallot, Sweet onion
- Instead of White Distilled Vinegar: Apple cider vinegar, Red wine vinegar
- Instead of Granulated Sugar: Honey, Maple syrup
- Instead of Salt: Sea salt, Kosher salt
Equipment Needed
- Chef's Knife
- Cutting Board
- Glass Jar or Deli Container
- Small Saucepan
- Measuring Cup
- Measuring Spoons
- Wooden Spoon or Fork
Critical Steps — Do Not Skip
- Slice the onions with the grain to keep them crisp.
- Ensure the sugar and salt are fully dissolved in the brine.
- Press the onions down so they are fully submerged in the brine.
- Allow the pickles to chill in the refrigerator for at least 2 hours.
Chef Tips from the Video
- Add a few peppercorns, a clove of garlic, or fresh herbs (thyme, dill) to the brine for extra flavor.
- Use a glass jar so you can see the beautiful pink color develop.
- For a milder tang, substitute half of the white vinegar with apple cider vinegar.
Troubleshooting
Onions are soggy instead of crisp.
Slice with the grain, keep the brine hot when pouring, and refrigerate for a longer period (4–6 hours).
The onions float and stay above the brine.
Press them down firmly with a spoon or add a small weight (like a clean stone) to keep them submerged.
Brine tastes too salty or too sweet.
Adjust the next batch by reducing salt to 3/4 tbsp or sugar to 1/2 tbsp, tasting as you go.
Storage
Refrigerator: Up to 2 weeks in a sealed container.
Freezer: Not recommended; texture changes.
Room temperature: Do not store at room temperature; risk of spoilage.
Make-Ahead Tips
- Pickled onions keep well for up to 2 weeks, so you can make a batch at the start of the week.
- Double the recipe and store in a larger jar for party prep.
Frequently Asked Questions
What is the cultural significance and history of pickled red onions in American cuisine?
Pickled red onions have roots in traditional preservation methods used by immigrants to extend the shelf life of fresh produce. In the United States they became popular as a quick condiment for tacos, burgers, and salads, adding a bright acidity that balances rich flavors.
What are the traditional regional variations of pickled red onions in Mexican cuisine?
In Mexican cuisine, pickled red onions (often called "cebollas encurtidas") are commonly flavored with lime juice, oregano, and sometimes chilies. They are served on tacos, tortas, and street‑food dishes for a tangy crunch.
How are pickled red onions traditionally served in Southern United States cooking?
Southern cooks often serve pickled red onions alongside fried chicken, barbecue, and po’ boys. The sharp acidity cuts through the richness of fried foods and complements smoky barbecue sauces.
What occasions or celebrations are pickled red onions commonly associated with in American food culture?
Pickled red onions are a staple at casual gatherings such as backyard barbecues, taco nights, and brunches. Their quick prep makes them ideal for last‑minute party spreads.
What authentic traditional ingredients are used in classic pickled red onions versus acceptable substitutes?
The classic recipe uses white distilled vinegar, water, sugar, and salt. Substitutes like apple cider vinegar or red wine vinegar can be used for a different flavor profile, and honey or maple syrup can replace sugar while keeping the sweet balance.
What other American dishes pair well with pickled red onions?
Pickled red onions pair beautifully with pulled pork sandwiches, grilled salmon, avocado toast, grain bowls, and even pizza for a pop of acidity.
What are the most common mistakes to avoid when making quick pickled red onions?
Common errors include cutting the onions across the grain (which makes them mushy), not fully dissolving the sugar and salt, and letting the onions sit at room temperature for too long before refrigerating.
Why does this pickled red onion recipe use a 1:1 vinegar‑to‑water ratio instead of straight vinegar?
A 1:1 ratio balances acidity with flavor, making the onions tangy but not overwhelmingly sharp. It also stretches the vinegar, reducing cost while still preserving the onions safely.
Can I make these pickled red onions ahead of time and how should I store them?
Yes, you can make them up to a week in advance. Keep the sealed jar in the refrigerator; the flavor will improve over time and they stay fresh for about 2 weeks.
What does the YouTube channel Mathew Rago | Recipes and More! specialize in?
The YouTube channel Mathew Rago | Recipes and More! focuses on simple, everyday home‑cooking recipes, quick kitchen hacks, and approachable techniques for home cooks of all skill levels.
How does the YouTube channel Mathew Rago | Recipes and More! approach American comfort food compared to other cooking channels?
Mathew Rago emphasizes minimal ingredient lists, clear step‑by‑step visuals, and practical tips that fit busy lifestyles, setting his approach apart from channels that use more elaborate or specialty‑ingredient‑heavy methods.
Last updated: August 29, 2026
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