Core Points - FAT Brands Inc. is promoting a buy one, get one free milkshake deal at its brands Fatburger, Johnny Rockets, and Elevation Burger throughout September to celebrate National Milkshake Month [1][2][3] - The promotion is available daily from 2:00 p.m. to 5:00 p.m. until September 30, and customers can redeem it in-store or online using a specific code [1][2] - FAT Brands has over 450 locations worldwide and has been acquiring and developing various restaurant brands since its inception in 2017 [3][4] Company Overview - FAT Brands is a global franchising company that owns 18 restaurant brands and operates over 2,300 units worldwide [4] - Fatburger has been serving customized burgers since 1952 and has a loyal customer base, including celebrities [5] - Johnny Rockets, founded in 1986, is known for its high-quality menu items and has over 250 locations in 25 countries [6] - Elevation Burger, established in 2002, focuses on organic ingredients and aims to elevate food quality standards [7][8]