The next time you go to Whataburger you're going to want to splurge on dessert. If you always order Dr. Pepper with any combos you're in store for a big surprise! Whataburger and Dr. Pepper collaborated and will be presenting you a new item on their menu. Who knows, maybe you will skip ordering the pies and try this bubbly shake. There is a lot of excitement from Whataburger fans about the additional menu item. As it is enough people have a hard time ordering from the menu and then this happens. Whataburger and Dr. Pepper won't be collaborating for too long though. The Dr. Pepper shake will be on the menu for a limited time only. Unfortunately, El Paso will not be able to experience the Dr. Pepper shake. In place of the Dr. Pepper shake, El Paso will have the Root beer shake instead. This new menu item is something you shouldn't be procrastinating about. Since the McDonald's in Australia fooled some people, Whataburger fans didn't believe the news. When Whataburger announced their new item a lot thought it was an April Fool's joke. But Whataburger later confirmed that it was no joke on their Twitter page. So the next time you're at Whataburger try the new Root beer shake!