MCDONALD’S has launched a brand new drink today across all UK stores – but if you want to try it you will have to act fast.
The Grimace Shake is already a hit stateside and went viral when it landed in US restaurants last year.
The new Grimace shake is coming to UK stores todayThe sweet treat is purple and features a blueberry-flavoured syrup blended with a creamy milkshake base.
A medium drink will set you back £2.69, while a large version of the shake is £2.99...