So I included these super quick pickled onions in the Cuban Sandwich recipe... and LOVE them on that sandwich. But it turns out I love them on pretty much all the things I ever make. Ever.
Sandwiches, burgers, paninis, rice bowls, salads, even avocado toast. Pretty much anywhere I would put red onions. Which if you know me, you know is EVERYTHING.
So they’re getting their own post. So I don’t have to keep explaining how they’re tucked inside the cuban sandwich post. This is sort of a thing I’m learning-as-I-go— over here in blogging land.
A Quick Look At The Recipe
- Recipe Name: Super Quick Pickled Onions
- Ready In: 65 minutes
- Serves: 10
- Calories: 11 cal
- Protein: 0.3g
- Fat: 0g
- Carbs: 2.5g
- Why You'll Love It: I cannot get enough of these! A luxury I used to reserve for restaurants -- but who knew they take like five minutes of work?! Now I put pickled onions on just about everything.
These onions though. They’re so quick and easy. They make my store bought chicken burger right here (obsessed with the Don Lee ones from Costco) all fancy and extra delicious. And since they’re always hanging out in a jar in my fridge now, they add so much to a meal for zero extra work! I’m a fan.
And they couldn’t be easier, throw together your apple cider vinegar, sugar, kosher salt and warm water.. shake it in a jar, or whisk in a pyrex, and add a bunch of thinly sliced red onion. Let it sit at room temperature while you make your dinner and that’s it! Store in the liquid in your fridge for up to two weeks… maybe more but mine never make it past three days. Ha.
Sometimes I just throw new onions in the same liquid, that’s how lazy I am. So if I can pickle, you can pickle. But I’ll admit, they don’t pickle as well that way, so it’ll hold me over until I can drain and start fresh. Don’t sleep on these super quick pickled onions! Easiest way to elevate ALL THE MEALS.

Super Quick Pickled Onions
Ingredients
- 1/2 cup apple cider vinegar
- 1 tbs sugar
- 1.5 tsp kosher salt
- 1 cup warm water
- 1 medium red onion sliced thinly
Instructions
- Mix together vinegar, sugar and salt.
- Mix with warm water in a jar to dissolve.
- Add thinly sliced red onion, soak for 1 hr or longer at room temp then store in the fridge.
Notes
- If you count your macros: I’ve always been nervous to try these because of the sugar. I assumed it would add up AND wasn’t sure how to account for it. But this is my take on it. I weighed the pickling juice before and after the onions soaked and it hardly changed at all. Unless there’s some science I don’t understand where the onions pull all of the sugar from the water, the amount soaked up was so negligible. Not even worth tracking. If anything, the onions take on water and weigh more which means 30 grams of pickled onions might only be like 20 grams of raw onions which would make them LOWER in carbs in theory than raw. Also they’re just onions. HA. So I’m calling it even and I’ll be logging raw onions every time I use these babies.
Nutrition
Tried this recipe?
Tag @LillieEatsAndTells on Instagram with #LillieEatsandTells! We’d love to see your creations!









I’ve made these at least 50 times. Everyone loves them. I ran out of sugar and used honey a couple of times and it was just as good.
Uncover the future of gaming with Empire of Musk – a groundbreaking Web3 experience! Build your business empire free of donations. Enhance your ventures to amplify your earnings per hour. Engage, earn, and in time convert in-game wealth for actual cash. Enter the Empire of Musk today and mold your virtual wealth! invitation link https://t.me/muskempire_bot/game?startapp=hero1411867593
I make often and have a jar of these onions in my fridge always. I just added some sliced radishes from the garden to the existing jar when I was low on onions. It was super tasty in the onion-y brine.
Recipe looks great but my goodness the ads!! It’s like wack a mole. I think there were four video ads at one time! (I bought one of your cookbooks and love it, btw, but I wish your amazing site was as little more usable)
Love these with so many things!
Obsessed!
Love this recipe. I make it at least twice a month. It pairs well with many recipes and tastes delish. Super easy to make.
These are delicious!
Love these! I put them on everything and always want them in my fridge
Do the onions need to be completely covered? What if I don’t have a mason jar? Can I do it in a Tupperware? I tried it with a Tupperware but the onions don’t seem to be softened really at all after an hour on the counter.
Thank you!!! So easy & completely changed my salad.