Shamrock Shakes are back at the restaurants. The Oreo Shamrock McFlurry has made a limited time return, as well. Start the day smarter. Get all the news you need in your inbox each morning. Shamrock Shakes sales do some good.

From the various flavors that have been available to the struggles of unveiling it nationwide, here's what you should know about McD's minty green shake.

McDonald's announced when the Shamrock Shake will return. Here's what to know including what it tastes like, ingredients and how many calories it has.

A seasonal favorite will be back on the menu next week. Here's what we know about McDonald's Shamrock Shake and Oreo Shamrock McFlurry.

McDonald’s brings back its Shamrock Shake for a limited time, featuring Uncle O’Grimacey and a charity campaign supporting Ronald McDonald House Charities.

Despite his hiatus, the green, furry icon was never forgotten. Uncle O’Grimacey earned his own merch line, called the Uncle O'Grimacey collection, which includes Shamrock Season pins, a crewneck and, even, a plain white tee that says “Who’s your uncle?” alongside an image of the uncle himself.

Cue up a standing ovation, TBH, because the famed McDonald's Shamrock Shake is officially back on menus (finally)! Served annually since 1970, this is one of the tastiest fast food sweet treats we look forward to year after year.

One of the most recognizable holiday treats at McDonald's is making its return, along with one of Grimace's relatives.

The character known for his purple hue discovers an Irish uncle, on tap to promote the green-hued limited-edition Shamrock Shake.