Quick and Easy Marinated Red Onions

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Onions get a bad reputation, but these Quick and Easy Marinated Red Onions will have you adding onions to all your favorite dishes.

Marinated red onions covered and sitting in a white bowl with a bottle of balsamic vinegar and olive oil off to the left side and some more sliced onions off to the right.

Condiments, you either love them or hate them. Personally, I fall under the category of both, depending on what it is. I mean, there are some interesting things out there, haha. One thing, though, I am all for when it comes to adding something fresh. That's why I love having some of these Quick and Easy Marinated Red Onions around to toss on top of salads, in sandwiches and wraps, tacos, all the meats, avocado toast, and even on eggs. Really there isn't anything I've found that these don't taste delicious with.

This recipe is so easy to make you'll quickly be making them to have on hand at your house too.

Why You'll Love Them

Simple ingredients!
Easy to make!
Tastes great on everything!

How to Use

Top your favorite chicken, steak, pork etc., for extra flavor and a little crunch.
Add to your favorite burgers, sandwiches, wraps, tacos, and even hot dogs.
Toss it into all your favorite salads for an extra burst of flavor.
Garnish the tops of pizza to take the ordinary to extraordinary.
Use any leftover marinade to marinate your favorite meat and toss it on the grill or even turn it into a delicious salad dressing.

Ingredients

Red Onions - Thinly sliced.
Balsamic Vinegar
Olive Oil
Oregano
Garlic
Salt

How to Make Marinated Red Onions

Making marinated red onions is really simple, and it only takes a few minutes of work to enjoy these for days to come.

Thinly slice the red onions and place them still intact into a small bowl or mason jar.
In a separate bowl, mix the marinade and stir till combined.
Pour the marinade over the onions.
Let them rest.
Use them on everything.

Sliced red onions in a dark grey bowl covered with marinade and surrounded by it's ingredients.

Tips and Tricks

Can you use another onion?

You can, but I love the flavor of red onions the best. I have found that shallots hold flavor really well, too, if you want a smaller onion for things like salads.

How long do they last?

These will last about 2-4 days on average, but even a day or so later, you can still cook up the onions to enjoy or use the marinade.

How to store marinated red onions.

Marinated red onions are not stored in the fridge. The reason for this is if you are using good quality olive oil (which you should be), then it will solidify when it's cold; therefore, you are not getting the onions coated in the liquid.

Do you have to cover them?

The short answer is it's your preference. I don't typically, but if you want to, you can in order to keep anything from falling into them as they are out in your kitchen. I would also cover if you live in a warmer climate to help keep them fresher for longer.

Close up image of the marinating red onions in a white bowl showing off the colors and the textures of the red onions.

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