--- title: Pickled Red Onions description: Quick and easy Pickled Red Onions recipe using a mustardy brine. Ready in about an hour. Perfect for adding a tangy crunch to your dishes. image: https://blog.unitedsupermarkets.com/hubfs/Pickled%20Red%20Onions%20_%20Website%20Recipe%20Cover%20Image%201x1.jpg --- [![United Supermarkets Logo](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/USLogo.png)](https://www.unitedsupermarkets.com) - [Save](https://blog.unitedsupermarkets.com/pickled-red-onions#) - [Coupons](https://www.unitedsupermarkets.com/rs/digitalcoupons/choose) - [Weekly Ad](https://www.unitedsupermarkets.com/rs/weeklyad) - [Offers](https://www.unitedsupermarkets.com/rs/offers) - [Rewards Items](https://www.unitedsupermarkets.com/rs/Rewards) - [Rewards Program](https://www.unitedsupermarkets.com/page/savings/Rewards) - [Browse](https://blog.unitedsupermarkets.com/pickled-red-onions#) - [Departments](https://www.unitedsupermarkets.com/rs/planyourtrip/) - [Recipes](https://www.unitedsupermarkets.com/rs/recipes) - [Health & Wellness](https://www.unitedsupermarkets.com/page/healthandwellness) - [Pharmacy](https://www.unitedsupermarkets.com/page/pharmacy) - [Floral](https://www.unitedsupermarkets.com/page/floral) - [Blog](https://blog.unitedsupermarkets.com/) - [Shop Online](https://www.unitedsupermarkets.com/rs/shoponline) - [Groceries](https://storefront.shop.theunitedfamily.com/) - [Gift Cards](https://www.unitedsupermarkets.com/rs/giftcards) - [FTD Floral](https://www.marketstreetflowers.com/) ![](https://blog.unitedsupermarkets.com/hubfs/Market%20Street%20Blog%202019/MagnifyingGlass.png) [![](https://blog.unitedsupermarkets.com/hubfs/Market%20Street%20Blog%202019/list.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) [![](https://blog.unitedsupermarkets.com/hubfs/Albertsons%20Blog%202019/Ei-navicon.svg.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) ![](https://blog.unitedsupermarkets.com/hubfs/Pickled%20Red%20Onions%20_%20Website%20Recipe%20Cover%20Image%201x1.jpg) # Pickled Red Onions Author [A Pleasant Little Kitchen](https://blog.unitedsupermarkets.com/author/a-pleasant-little-kitchen) | July 2, 2025   **Author note: **Don’t let the word “pickle” intimidate you. Pickled Red Onions is a simple, fast and versatile recipe. There is no “putting up” or “canning” in this recipe. It is a quick pickle that utilizes a mustardy brine to easily create pickled red onions in about 1 hour. Additional vegetables like cauliflower, carrots and garlic are a nice addition. Keep in mind that heartier veggies take longer to pickle.   Ingredients 1 large red onion, halved and thinly sliced 1 tsp mustard seed 1 1/2 tsp kosher salt 1 tbsp sugar Pinch of red pepper flakes 1/2 cup to 3/4 cup apple cider vinegar (depending on the size of the onion) Instructions Place the onion slices into a large, heat-proof bowl. In a saucepan, add the mustard seed, salt, sugar, red pepper flakes and vinegar. Bring to a simmer and let cook until the salt and sugar are dissolved. Stir to combine. Pour the brine over the red onions. Stir. Press down on the onions to submerge. Let cool for 30 to 45 minutes, stirring occasionally.  Place in an airtight container, store in the fridge and strain before serving. ![](https://blog.unitedsupermarkets.com/hs-fs/hubfs/image-png-Jul-02-2025-06-48-10-0788-PM.png?width=368&height=414&name=image-png-Jul-02-2025-06-48-10-0788-PM.png) - [Tweet](https://twitter.com/share) Topics: [A Pleasant Little Kitchen](https://blog.unitedsupermarkets.com/tag/a-pleasant-little-kitchen) ### Recent Posts ### Main Categories - [A Pleasant Little Kitchen (155)](https://blog.unitedsupermarkets.com/tag/a-pleasant-little-kitchen) - [Happy and Nourished (102)](https://blog.unitedsupermarkets.com/tag/happy-and-nourished) - [Eat Well Live Well (26)](https://blog.unitedsupermarkets.com/tag/eat-well-live-well) - [Chef's Counter (14)](https://blog.unitedsupermarkets.com/tag/chefs-counter) - [Day of the Dead, Día de los Muertos (8)](https://blog.unitedsupermarkets.com/tag/day-of-the-dead-día-de-los-muertos) - [Easter (7)](https://blog.unitedsupermarkets.com/tag/easter) - [Hatch Chile Season (6)](https://blog.unitedsupermarkets.com/tag/hatch-chile-season) - [Valentine's Day (6)](https://blog.unitedsupermarkets.com/tag/valentines-day) - [Mothers Day (5)](https://blog.unitedsupermarkets.com/tag/mothers-day) - [Hispanic Heritage Month (4)](https://blog.unitedsupermarkets.com/tag/hispanic-heritage-month) - [Back To School (2)](https://blog.unitedsupermarkets.com/tag/back-to-school) - [Cinco De Mayo (2)](https://blog.unitedsupermarkets.com/tag/cinco-de-mayo) - [Brunch (1)](https://blog.unitedsupermarkets.com/tag/brunch) - [floral (1)](https://blog.unitedsupermarkets.com/tag/floral) - [salad (1)](https://blog.unitedsupermarkets.com/tag/salad) - [summer (1)](https://blog.unitedsupermarkets.com/tag/summer) - [vegetables (1)](https://blog.unitedsupermarkets.com/tag/vegetables) [See all](https://blog.unitedsupermarkets.com/pickled-red-onions#) ![United Supermarkets](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/USIcon.png) ### Company Information - [About The United Family](https://www.theunitedfamily.com/) - [Careers](https://www.theunitedfamily.com/careers/) - [Commitment to Community](https://www.theunitedfamily.com/donations/) - [Sustainability Promise](https://www.theunitedfamily.com/sustainability/%20target=) - [Market Street](https://www.marketstreetunited.com/) - [Amigos](https://www.amigosunited.com/) - [Albertsons Market](https://www.albertsonsmarket.com) ### Guest Services - [Shop Online](http://www.unitedsupermarkets.com/rs/shoponline/) - [Order Gift Cards](https://www.unitedsupermarkets.com/rs/giftcards) - [Order Flowers](https://www.marketstreetflowers.com/) - [Take Our Survey](https://www.unitedsupermarkets.com/survey) - [Refill/Transfer Prescriptions](https://ecom.nhin.com/nhin/servlet/EpsEntry?CHAIN_ID=UNITED&STORE_ID=ALL&INIT=YES) - [Contact Us](https://www.unitedsupermarkets.com/page/contact) ### Resources - [Nutritional Info](https://www.theunitedfamily.com/nutrition/) - [Online Shopping FAQs](https://www.theunitedfamily.com/contact-us/faqs/#shopping) - [Email Online Shopping Support](https://www.safeway.com/contactus/contact-us-form/groceryDelivery/?bannerId=unitedsupermarkets) - [Rewards Program](https://www.unitedsupermarkets.com/page/savings/rewards) - [Email Rewards Support](https://www.safeway.com/contactus/contact-us-form/commentsAndQuestions/accountUpdate?bannerId=unitedsupermarkets) - [Product Recalls](https://www.theunitedfamily.com/recalls/) - [Coupon Policy](https://www.theunitedfamily.com/coupon-policy/) - [Privacy Policy](https://www.theunitedfamily.com/privacy-policy/) - [Terms & Conditions](https://www.theunitedfamily.com/terms-conditions/) [![](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/Insta.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) [![](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/Facebook.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) [![](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/Twitter.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) [![](https://blog.unitedsupermarkets.com/hubfs/United%20Supermarkets%20Blog%202019/Pinterest.png)](https://blog.unitedsupermarkets.com/pickled-red-onions#) Download Our Rewards App ![](https://blog.unitedsupermarkets.com/hubfs/Market%20Street%20Blog%202019/GooglePlay.png) ![](https://blog.unitedsupermarkets.com/hubfs/Market%20Street%20Blog%202019/AppStore.png) ```json { "@context" : "https://schema.org", "@type" : "VideoObject", "contentUrl" : "https://stream.mux.com/QpBxAKJUqFOK3rmPZtQ02mBD7TQN01yADXdFd01MGdOVE4/capped-1080p.mp4", "dateModified" : "2025-07-02T18:48:54.642Z", "duration" : "PT32S", "height" : 1920, "name" : "Pickled Red Onions _ Instructional Video", "thumbnailUrl" : "https://3894598.fs1.hubspotusercontent-na1.net/hubfs/3894598/Pickled%20Red%20Onions%20_%20Instructional%20Video.mov/medium.jpg?t=1751482134642", "uploadDate" : "2025-07-02T18:48:46.494Z", "width" : 1080 } ```