Skip to main content

The Manual may earn a commission when you buy through links on our site.

Costco sells a semi-secret McDonald’s ingredient that will make your next burger stand out

Simple, effective - and you can put 'em on any burger

Costco storefront
Mike Mozart/Flickr / Flickr

If you enjoy cooking, you probably pride yourself on making a delicious, homemade burger. A burger made with loving care, gently topped with thoughtfully prepared ingredients like grilled onions, carefully selected lettuces and cheeses, perhaps complemented with homemade garlic aioli, on a buttery, toasted bun. These burgers are the ones we love to show off at a family cookout, the ones our kids grow up comparing all other homemade burgers to. The ones that go perfectly with corn on the cob, fireworks, and a cold one.

And then there are the fast food burgers we also love. These are the burgers we rely on after a long day. The ones that are always there for us during a late-night craving or post-soccer practice dinner enjoyed from the backseat. These burgers also have a big place in our hearts for entirely different yet equally important reasons.

And if we’re honest, perhaps the reason we sometimes go above and beyond with our homemade burgers is that, try as we might with our fancy ingredients and scratch-made sauces, pinning down the taste of a fast food burger – especially a McDonald’s burger – is almost impossible to accomplish. If you’ve ever frustratingly attempted this feat and come up short, we have a little secret that just might help you get a little bit closer to that goal.

You’ve probably noticed that McDonald’s does onions differently. They’re beady, perfectly crunchy, zippy little pearls of zing, and they’re absolutely delicious. But did you know that McDonald’s onions are actually just dried onion flakes? The ones that come in a plastic shaker? And the best part is they sell them at Costco.

No need for tearful slicing or dicing when it comes to recreating the perfect McDonald’s burger. Simply rehydrate these little flakes in some water, microwave, and bam – McDonald’s onions in your own kitchen. Now you can be one step closer to creating the perfect fast-food burger at home.

Person eating McDonald's burger
Quinton Coetzee/Unsplash / Unsplash

McDonald’s onions recipe

Ingredients:

  • 1 tablespoon
  • 1/8 cup water

Method:

  1. Place onion flakes and water in a small microwaveable bowl and microwave for 30 seconds on medium.
  2. Let sit 15 minutes, or until all of the water has been absorbed into the flakes.
  3. Squeeze out any remaining water using the back of a spoon.
  4. Spread onions on a hamburger bun and enjoy.
Popular fastfood: soft hamburger with fresh meat
nanisimova / Adobe Stock

McDonald’s burger tips and tricks

This onion trick is probably the best copycat McDonald’s burger hack, but if you’d like to go all out and really try to recreate a McDonald’s burger, we have a few additional tips:

  • McDonald’s burger patties are extremely lean. While we usually like fattier beef in most homemade burgers, use leaner ground beef and make very thin patties.
  • There’s no special seasoning on a McDonald’s burger. Salt and pepper will do the trick.
  • American cheese – particularly the kind that comes in individual plastic sleeves – is the way to go for a copycat McDonald’s burger.

Editors' Recommendations

Lindsay Parrill
Lindsay is a graduate of California Culinary Academy, Le Cordon Bleu, San Francisco, from where she holds a degree in…
What are capers, anyway? Learn all about the briny ingredient that will transform your favorite dishes
Sure, they're delicious, but what exactly are they?
Capers

Every olive-obsessed, bring-on-the-brine fan of a flavorful vinegar punch loves a caper. These weird little briney beads are the perfect addition to anything that needs an added zip. Salads, sandwiches, sauces, pork, fish, and chicken all pair beautifully with these little green gems, and we can't seem to get enough.
While you may only know them as the star of your favorite chicken piccata recipe, capers are actually so much more than an absentminded garnish that only serves as an afterthought for the sake of tradition. They're actually delicious little flavor bombs, packing a real punch of power if you know how to use them.
Have you ever wondered, though, what exactly capers are? Are they seeds? Some strange sort of seaweed? Nuts that somehow lost their way? A strange gift from space that has gone unquestioned all these years?

What are capers?
Actually, capers are far less exciting than any of those theories, but that doesn't make them any less delicious. They're actually the green flower buds of a bush called capparis spinosa that grows wild across the Mediterranean and some parts of Asia. The buds are harvested and dried, then preserved in a salty brine that gives them that deliciously pickled and tart flavor we adore.
Though not as common as capers, you may sometimes see caperberries on the shelf next to the capers. These are simply the fruit of the caper plant when it has been left to bloom. Caperberries are much larger than capers, usually about the size of an olive, and make for an absolutely stunning cocktail garnish.

Read more
The sriracha shortage is real – but making your own sriracha is so easy you might not even care
Best of all: You basically don't do anything
Empty sriacha bottle

Most of us fell in love with sriracha ages ago, when it could still be found on almost every casual restaurant table, and grocery store shelves were bursting with the bottle's signature green cap and rooster logo. Even more cruel a memory? At the time, one of those bottles would only set you back a couple of bucks. Remember those days? Sadly, times have changed, and just one 28-ounce bottle of Huy Fong Foods' favorite condiment is running over $20 on sites like Amazon. And even those bottles are selling like crazy, hotter than their delicious contents. So if you don't mind spending five times what you did just a few precious years ago on your beloved brand, you'd better do so fast.

In a sriracha shortage that has now gone on for three long years, it seems that the always-fun combination of legal battles and climate change is to blame. A dispute between Huy Fong Foods and its pepper supplier, Underwood Ranches, that started in 2017 is still causing problems that just don't seem to be getting any better. Pair that drama with terrible drought and unpredictable weather conditions, and there doesn't seem to be any reprieve in sight for Huy Fong Foods' popular sriracha sauce.

Read more
Costco has a secret online store, Costco Next, that any member can access – here’s how
It's just like Costco, only premium - and there are no hot dogs
Ft. Wayne - Circa August 2017: Costco Wholesale Location. Costco Wholesale is a Multi-Billion Dollar Global Retailer X

 

Whether you have a bunch of kids and need that Costco membership for the snacks or are entering your middle-age era and have started shopping for your jeans there, Costco membership holders are die-hard people. There are whole Reddit pages dedicated to how to best shop at the store and plenty of TikToks showing how to maximize Costco hauls. Plus, where else do you get a hot dog and a drink for $1.50 these days? But we all know that staying home and ordering online from your favorite store is where it's at, so get ready to be blown away by how to access Costco Next, Costco's best-hidden feature.

Read more