Editors' pick: Originally published Feb. 2.

In this turbulent time fraught with worry, fear and doubt — McDonald's (MCD) - Get Report has extended a calorie-laden lifeline. Yes, the Shamrock Shake is back with a vengeance along with the Chocolate Shamrock Shake, once only relegated to the secret menu.

Other new iterations of the popular limited-edition shake include a frappe, hot chocolate and mocha, because if you're going to go all out, it may as well include caffeine. All of these options are available now at participating locations, according to Brand Eating.

Original Shamrock Shake

Vanilla soft serve combined with mint-flavored syrup. New this year — green sugar crystals on top of the usual whipped topping and maraschino cherry.

New Chocolate Shamrock Shake

Long a staple on the secret menu, this fan favorite involves a layered chocolate shake on the bottom with Shamrock Shake on top, and the usual topping complete with chocolate drizzle.

New Shamrock Chocolate Chip Frappe

A chocolate chip frappe blended with a Shamrock Shake creates a beautiful Frankenstein.

New Shamrock Hot Chocolate

Hot chocolate with Shamrock Shake syrup. Boom.

Shamrock Mocha

A mocha (chocolate syrup, espresso, and steamed milk) with Shamrock Shake syrup.