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…
Can you freeze lettuce? The do’s and don’ts of making your produce last
What you need to know about freezing lettuce
Man outside holding a cut head of lettuce

While standing in the grocery store, picking up some lettuce to make healthy salads sounds like a great idea. Many of us buy lettuce as part of our weekly grocery run, only to find it going bad faster than we're able to use it. If you've ever found yourself tossing soggy or brown lettuce in the trash week after week, you know the disappointment of wasted grocery spending. With rising grocery costs along with inflation, finding new hacks to help cut down grocery spending is important -- but so is ensuring that no food purchased with your hard-earned money goes to waste.

One way to help cut down on wasted food is to freeze foods you won't consume before they go bad. Surprisingly, many people do not know that produce such as lettuce can be frozen. But how? Below, we'll teach you how to keep lettuce fresh by freezing it -- so you can skip that "throw it in the trash" disappointment.

Read more
How to make apple-infused bourbon
Apple-infused bourbon recipe
Applie bourbon

If you’re a bourbon fan and have never infused it with other flavors, what are you waiting for? A whole world of whiskey flavor combinations is just waiting to be discovered. Peaches, berries, raisins, and apples are all great flavors to infuse your favorite whiskey with (or enhance a lesser whiskey).

There are a few reasons why infusing your whiskey is a great idea. When bourbon is distilled, it’s clear and similar to moonshine. It’s not until it’s aged that it gets the caramel, vanilla, oak, and spice flavors from the charred oak. When you add fruit and other ingredients to bourbon, a similar process takes place. That’s why infusing your favorite bourbon gives it bold, delicious, complex flavors and aromas.

Read more
Secrets revealed: Chef shares his best tips for cooking a picanha steak
An expert's guide to cooking picanha steak.
Brazilian picanha on plate with sides.

The Picanha Feast at Berimbau Brazilian Kitchen. Berimbau Brazilian Kitchen

If you've had the pleasure of dining at a Brazilian steakhouse, one of the best beef cuts you'll taste is the amazing picanha steak. The most popular cut in Brazil, this steak is a perfect combination of juicy, lean beef encased in a natural fat cap that bastes the meat while it grills. Simply put, this steak is a must-have for many Brazilian social gatherings.

Read more