MCDONALD'S fans are going wild after only now discovering an "incredible" £2.50 milkshake hack.
Fast food lover Erin shared a TikTok video of everything she ate at the fast food giant during one sitting.
The video has racked up more than 800,000 views and over 100,000 likes.
But one thing that viewers picked up on was that she turned her vanilla milkshake into coffee by adding a shot of espresso.
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Now McDonald's aficionados will already know about this trick as it isn't new.
Three years ago, TikToker El posted the same trick online.
Pouring her shot into the cup, El explained: “Whack it in, and then you mix it together.
“When you have a normal McDonald’s milkshake it’s well-lumpy but this makes it a bit more juicy.
“And voila - frappuccino!"
Then in 2018, bosses at the restaurant gave cops free drinks after officers invented the McAffogato – made by dumping a double espresso into a vanilla milkshake.
And now even more people are discovering the clever trick.
Fans were going wild with one commenting on Erin's video: "Why did I never think of doing this with my drink!"
While another said: "Vanilla milkshake with espresso is my favourite ever!"
Another added: "This is an elite Maccies order."
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An espresso sets you back 79p at McDonald's, and £1.79 for a medium milkshake.
This comes to £2.58 for the smaller and weaker version of the delight.
Foodies have been adding shots of coffee or even ice cream to milkshakes to add that extra bit of flavour.
But one food lover divided opinions after pouring a shot of espresso and syrup into her coca cola drink.
Elena shared an unusual drinks combo on TikTok, where she revealed the multiple orders she makes to whip up her one-of-a-kind creation.
She captioned the video “don’t knock it till you try it”, and her bizarre recipe has racked up more than 600,000 views already.
Elena said: “Literally every time I go to McDonald’s and make this order, the staff are like…..
“Frozen coke, shot of espresso, vanilla syrup.
“It will change your life.”
One person said: “I can’t get passed how sweet this seems but like curious still.”
Another wrote: “Omg I thought I was the only one.”
A third commented: “Changed my life, so good.”
The trick also comes as more fans are discovering McDonald's secret menu.
One fast food lover has found a secret menu trick to get a popular item for just 10p.
The Maccies tip will see fast food fans get their hands on four chicken strips - for just a little more than they'd pay for three.
It takes just one simple step - and all you need is an old McDonald's receipt.
We also reported that the same has been done for a Big Mac.
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