Kim Kardashian is going viral for her hilarious reaction to a famous British dish. The Keeping Up With The Kardashians star sat down for an interview to promote her new show on Disney, All's Fair, alongside co-star Sarah Paulson, 50. The pair were in London when the SKIMS founder, 45, was educated about what a "jacket potato" is. “You’re a big fan of jacket potato, ain’t ya?,” the interviewer, known as Grime Gran, asked Kim Kardashian in the interview with radio network, Capital FM. “Who?” the latter asked with Paulson giggling. “Do you like a jacket potato?” Grime Gran asked again. When Kim asked her what that is, Paulson chimed in: “I really want to know if you like a jacket potato?” The reality star admitted she didn't know what that was, only for the Nurse Ratched actress to concede that she didn't either. Jacket Potato, also known as a baked potato in some parts of the United Kingdom, is a cooked potato that is served with fillings, toppings, or various condiments like butter, cheese, sour cream, gravy, and even tuna. “A potato cooked in the skin," Gramie Gran told Kim Kardashian, which is when she understood. "Oh, I love that, yeah," she replied. During her interview with Gramie Gran, Kim Kardashian revealed what filling she likes on her jacket potato: "Sour cream and butter... and bacon bits," she said, prompting the quintissential British grandmother to reply: "Oh sour cream and butter. Oh lovely. You're making me feel hungry." View on TikTokKim Kardashian celebrates sister Kendall Jenner's 30th birthday: Read more As reported by the Daily Mail, Kim Kardashian's latest interview comes days after she celebrated her younger sister Kendall Jenner's 30th birthday. The family celebrated with a huge tropical vacation, as seen in photos Kim shared online. The post came the same night she made her debut on Ryan Murphy's Hulu legal drama. 'Happy 30th Birthday @kendalljenner may this decade bring you the kind of love and joy you so freely give to everyone else. 🤍 I love you more than you’ll ever understand! Here’s to 30 Kenny,' she captioned the post.In one photo, she can be seen standing alongside her sister as they posed for the camera in front of a string of silver balloons that read, 'Happy Birthday Kendall'. Kim reportedly celebrated her own 40th birthday on the same island, and her other sisters, Kylie Jenner and Khloé Kardashian, as well as mom Kris Jenner, were also present. Stay tuned to SoapCentral for more.