St. Patrick’s Day is more than a month away, but you won’t have to wait that long to get your hands on a Shamrock Shake from McDonald’s . The fast food giant announced in a news release that the beloved shake, made with vanilla soft-serve ice cream, artificially-flavored minty green syrup and whipped topping, will return on Feb. 10. McDonald’s is also bringing back the Oreo Shamrock McFlurry. The McFlurry is made with vanilla soft-serve, minty green syrup and Oreo cookie pieces. Here’s everything you need to know about the Shamrock Shake, including its flavor, ingredients, calories and how…..