The internet is divided over a McDonald’s hack involving ice cream and hashbrowns of all things, but despite the controversy, it’s hugely popular in foreign countries. The McDonald’s secret menu is a thing of legend, from the budget-friendly bundle box to the hulking Monster Mac. Some items are not for the faint-hearted. Introducing the McDonald’s hash brown McFlurry sandwichSome fast food options are not to everyone’s liking, like the Burger King Shrimp Whopper, but for every hater, there is a staunch supporter. That fact is no more obvious than with the McDonald’s hash brown McFlurry sandwic…