As the UK gears up to celebrate St Patrick’s Day on Monday, March 17, McDonald’s has introduced a festive treat to mark the occasion: the Shamrock Shake. This vibrant green, peppermint-flavoured milkshake has been a seasonal favourite in the US since its creation in 1967 and is now making its debut in UK restaurants. Available for a limited time from March 12 to March 25, the Shamrock Shake is priced at £2.19 for a small, £2.69 for a medium, and £3.09 for a large, though prices may vary by