VIJAYAWADA: YouTube sensation and grandma chef Karre Mastanamma passed away on Monday night at her native village of Gudiwada in Tenali mandal of Guntur district. The 107-year-old chef, with a large fan following, and perhaps the oldest YouTube star was unwell for past six months. The news of her death, however, broke out late.Mastanamma’s YouTube channel, Country Foods, had a subscription base of 12.18 lakh. The number of subscribers more than doubled in last two years as the videos of her grand old cuisine went viral on the internet. Created by her grandson Lakshman and his friend, the YouTube channel attracted the attention of a large number of people, particularly those interested in cooking in old style.Mastanamma’s life has been full of struggle and inspiration. She lost her husband when she was just 22 years old. She also lost four of her five children to cholera. She worked in agricultural fields to eke out a living and her unique way of cooking attracted people in her village. But her fame crossed the borders of her village after a restaurant was set up by Lakshman in Guntur with menu handpicked and cooked by Mastanamma. The YouTube channel, Country Foods, made all the difference to her, bringing fame from around the globe. All her videos have more than a million views.She did not use LPG stove for cooking. She believed in the old firewood oven and preferred cooking food in the open, near agricultural fields. Some of her foods are unique and perhaps never attempted before. For instance, watermelon chicken was an instant hit. Emu egg curry, scrambled eggs and Telugu-style brinjal curry were the other hits from her open kitchen.Mastanamma was also popular for her biryani, which is different from the famous Hyderabad dum biryani. The biryani was cooked in a bamboo with a smoky flavour that gave it the unique taste and texture. She was also popular for Andhra, Kerala, Telangana and Mughlai cuisine. YouTube was flooded with the message of Rest in Peace as the news of her death went viral on social media.