McDonald’s is known for its Big Mac burger, a world famous meat feast created in February 1968.
To celebrate the burger’s two year history, McDonald’s have created two new versions of the iconic meal.
The first is the Grand Big Mac, which is the same burger in a larger size.
The second is the Mac Jr. – a smaller version of the Big Mac made with one less beef patty.
But the catch is these burgers are only available for a limited period of time.
The burgers, which launch across the UK today, February 7, will be available until March 20.
It starts a year of celebrations for the Big Mac, which is now sold in 100 countries worldwide.
What is in a Big Mac? Ingredients include beef and cheese.
A Big Mac is made from two all-beef patties, pickles, lettuce, onions and cheese.
The ingredients are sandwiched within a triple-decker sesame seed burger bun.
A special sauce is also added, which used to have a secret recipe.
The Big Mac is said to have taken two years to perfect.
It was invented by a man called Jim Delligatti in Pennysylvania, USA.
Recently, a baldness cure was discovered hidden in McDonald’s French fries.
It was said a certain ingredients, dimethylpolysiloxane, which is found in the fast food treat, cures hair loss.
The discovery was made from scientists at Yokohama National University in Japan.
Professor Junji Fukuda, who carried out the research, said: “This simple method is very robust and promising.