The man behind the infamous Mc10:35 has tossed some coffee grounds into his In-N-Out shake to create the "Frozen Mocha"

Is The Coffee-Grounds-In-Milkshake ‘Frozen Mocha’ The Next Secret Menu Item To Take Off?

We’ve talked a lot over the years about secret menu items at fast food joints and how they can be both fun for customers and good for business, so we’re always on the lookout for the next Mc10:35. Now the creator of that fast food Frankenstein has a new secret menu item he says is taking off at his local In-N-Out Burger. [More]