MCDONALD'S fans, listen up: there's a trick that can get you a half price Big Mac every time.
It takes a lot of work but it means you can pick up the iconic burger for £1.59 instead of £3.19.
All you have to do is order a double cheeseburger for £1.59 using one of the self-serve kiosks.
Then, you need to add several free add-on ingredients that are in a Big Mac: onions, mustard, pickles, lettuce, and mayonnaise.
You should also ask them to skip the ketchup as a Big Mac doesn't have any – unless you want to keep it in, of course.
It won't look exactly like the real deal but some fans say it tastes almost the same – and crucially, it saves you £1.59.
The only things the Franken-burger is missing are the third bread bun layer and the special Big Mac sauce.
But some savvy customers say you can ask staff for Big Mac sauce on your custom creation at no extra cost.
A double cheeseburger already comes with onions, mustard and pickles but you can get extra just like in a Big Mac if you add more at a self-serve kiosk.
The hack is a popular one with McDonald's super fans and was posted on hotukdeals.com and Reddit's Casual UK forum again recently.
It's one of several ways to pimp your McDonald's meals for less, which we've revealed before.