10 Spring has officially sprung with the news that the iconic Shamrock Shake will be returning to restaurants across the nation, said McDonald s in a statement. Let s stop for a minute and imagine that it s someone s job to write statements for Maccies. While St. Patrick s Day might be a little different this year, rest assured McDonald s are here for you, keeping this tradition alive! the person with the world s strangest job continued. Available from 10th February to 23rd March, this limited-edition shake is full of creamy vanilla soft serve, blended with delicious Shamrock Shake flavouring - it s sweet, green, and iconic for a reason.