Masala Herb

Flavorful Recipes

  • Home
  • Recipes
  • TRAVEL
  • Contact
  • New? Start HERE!
menu icon
go to homepage
search icon
Homepage link
  • Home
  • RECIPES
  • Contact
  • New? Start Here!
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
  • ×
    You are Here: Masala Herb » Recipes » Pickle

    10 Minute Pickled Red Onions (Refrigerator)

    Jul 23, 2025 by Helene Dsouza

    • Share
    • Tweet
    • Flip
    • Email
    • Share
    • Threads
    • Bluesky
    Helene Dsouza
    Quick pickled red onions that come together in just 10 minutes. All you need is a jar and a few pantry staples. Instant crisp tangy onions!
    Total Time: 2 days days 10 minutes minutes
    Prep Time: 10 minutes minutes
    Keep at Room Temperature: 2 days days
    16 Ounce Jar *See Notes
    RECIPE
    pickled red onions
    10 Minute Pickled Red Onions (Refrigerator) pin

    In just a few minutes, you can effortlessly prepare fresh red onion slices using this straightforward recipe.

    Water bath canning is not necessary for this vinegar-based, no-boil, refrigerator recipe. This will save you time, and the pickled onion can be consumed within a few days.

    10 Minute Pickled Red Onions (Refrigerator) cover
    Jump to:
    • TL;DR
    • Ingredient Notes
    • Process Overview
    • 📖 Recipe
    • Tips
    • Uses
    • Storing
    • More like this
    • 💬 Comments

    TL;DR

    We have been loving homemade pickled vegetables lately, and the red onion pickle is one of Paul's favorites.

    Red onions are sliced and simply placed into a canning jar with vinegar, water, salt, and black pepper.

    The pickle is then left out for some days at room temperature so that the ingredients get to mingle. Soon after, you get to already enjoy your first pickled onions!

    It's a super simple refrigerator pickle recipe, perfect for beginners and all those who intend to consume the pickled vegetables within weeks.

    homemade pickled red onions

    Ingredient Notes

    • Red Onions — Small, medium, or large onions, the size, and type are up to your preference.
    • Vinegar serves as the primary preservation agent. My recommendation is white wine vinegar. You could also use apple vinegar that has been filtered out and is less acidic, but we like the taste and look of white wine vinegar better.
    • Water — To balance the flavors.
    • Salt — Helps preserve and season the pickles.
    • Sugar — This sweetens the pickles and goes well with the salt and vinegar flavors. It also helps them last longer.
    ingredient for pickled red onions

    Process Overview

    Step 1

    Cut off the onion ends and peel them. Slice the onions and place them into the jar.

    slice red onions
    pack sliced red onions into canning jar

    Step 2

    Add the sugar and salt and pour the vinegar and water over your onion slices.

    add sugar and salt to the onions
    top up with vinegar and water
    fill up to the top

    Step 3

    Close the jar tight, make sure that it doesn't leak, and shake it well.

    Keep the jar out for 2–3 days at room temperature, then refrigerate and use as needed.

    close the jar tight
    shake the jar well
    refrigerator pickled red onion

    📖 Recipe

    pickled red onions

    10 Minute Pickled Red Onions Recipe

    Quick pickled red onions that come together in just 10 minutes. All you need is a jar and a few pantry staples. Instant crisp tangy onions!
    No ratings yet
    Print Pin Rate
    Course: DIY
    Cuisine: American, European
    Diet: Gluten Free, Low Calorie, Low Fat, Low Lactose, Vegan, Vegetarian
    Prep Time: 10 minutes minutes
    Keep at Room Temperature: 2 days days
    Total Time: 2 days days 10 minutes minutes
    Servings: 16 Ounce Jar *See Notes
    Calories: 15kcal
    Recipe by: Helene Dsouza

    Ingredients

    • 3 medium Red Onions
    • 1 Tablespoon Salt
    • 1½ Tablespoon Sugar
    • 1 Cup Vinegar *see Notes
    • 1 Cup Water *see Notes
    US - Metric

    Instructions

    • Have your ingredients measured and ready. You'll also need a clean sterilized glass jar with a rubber seal gasket (dishwasher or boil in hot water).
    • Cut off the onion ends, peel, and slice your onion. We like them not too thin nor too thick.
      3 medium Red Onions
    • Pack the onion slices into the clean jar.
    • Add the salt and sugar, and pour in the vinegar and water so that the onions are submerged.
      1 Tablespoon Salt, 1½ Tablespoon Sugar, 1 Cup Vinegar, 1 Cup Water
    • Close the jar tight and shake it so that the sugar and salt get dissolved.
    • Keep the jar out for 2–3 days at room temperature and shake the jar briefly daily at least once.
    • After the 2–3 days out, store the jar in your fridge at all times. The flavor will develop further in time, but you can use and enjoy your onions in your food already.

    Notes

    1 pint jars = 16 ounce jars = 500 milliliter (½ liter) jars. We use leakproof glass clamp jars with rubber gaskets. Get quality glass jars and rubbers if possible, the rubbers can be replaced. Ikea has cheaper ones too.
    The water and vinegar ratio is always 1:1.
    If you have a little space for more liquid to top up the jar, finish off with a small quantity of water.

    Equipment

    • Cutting Board
    • 8" Chef Knife
    • 1 Canning Jars with a latch and rubber seal 16 oz/ 1 pint/ 500 ml jar

    Nutrition

    Nutrition Facts
    10 Minute Pickled Red Onions Recipe
    Amount Per Serving
    Calories 15
    % Daily Value*
    Fat 0.02g0%
    Saturated Fat 0.01g0%
    Polyunsaturated Fat 0.004g
    Monounsaturated Fat 0.003g
    Sodium 438mg18%
    Potassium 31mg1%
    Carbohydrates 3g1%
    Fiber 0.4g2%
    Sugar 2g2%
    Protein 0.2g0%
    Vitamin A 0.4IU0%
    Vitamin C 2mg2%
    Calcium 6mg1%
    Iron 0.1mg1%
    * Percent Daily Values are based on a 2000 calorie diet.

    Tips

    1 pint jars = 16 ounce jars = 500 milliliter (½ liter) jars. We use leakproof glass clamp jars with rubber gaskets. If you have the option, get good glass jars and rubbers. The rubbers can be changed. Ikea has cheaper ones too that are solid.

    The proportions of vinegar to water are always 1:1. If there's still room in the jar at the end to add more liquids, just add enough water to cover the onions.

    While the jar is out at room temperature, shake it once a day and keep it out of direct sunlight.

    sliced pickled red onions
    red onions pickled

    Uses

    We have been adding these pickled red onion slices to everything!

    I like them in paninis, burgers, and cold sandwiches or as an addition to a simple side salad or lunch time salad.

    BBQ meats, grilled sausages and veggies taste all the more better with these pickled onions.

    I also add the pickled onions to my curries. The acidity complements all lentil and vegetarian curries.

    Storing

    Always keep your sliced pickles chilled in the refrigerator after the first two days out.

    In the fridge, the pickles will keep for at least 30 to 45 days. We almost always finish them before that time. They are better when fresh and crunchy, and they eventually get soggy.

    Avoid double-dipping to increase the shelf-life.

    More like this

    • Spiced Pickled Jalapeños
    • Pickled Ginger for Sushi
    • Pickled Cucumber
    10 Minute Pickled Red Onions (Refrigerator) pin
    • Share
    • Tweet
    • Flip
    • Email
    • Share
    • Threads
    • Bluesky

    I am Helene, and I created Masala Herb in 2011. Here you will learn to cook with spices and herbs. I share from scratch, international food recipes and my mission is to teach you to cook flavorful food at home. Read More…

    MasalaHerb.com as seen on

    Comments

    No Comments

    Leave a Comment Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    Welcome

    Hi there! I'm Helene and here you will learn how to cook with spices and herbs. Discover global food and learn to season your food like a pro. Read more about my work and mission or head over to my food ingredient space, Unknownbite.com, and our travel space, Paulmarina.com!

    More About Me ->








    Home
    About
    As seen in
    Contact
    Terms and Conditions
    Privacy Policy

    By continuing to use the site, you agree to the use of cookies.

    Masala Herb is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

    Copyright © 2025 · Magazine Pro Theme On Genesis Framework · WordPress

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required