Hamburger and Sonic also rely heavily on hamburger sales. Fuddruckers and Red Robin are hamburger chains that specialize in the mid-tier "restaurant-style" variety of hamburgers. Some restaurants offer elaborate hamburgers using expensive cuts of meat and various cheeses, toppings, and sauces. One example is the Bobby's Burger Palace chain founded by well-known chef and Food Network star Bobby Flay. Hamburgers are often served as a fast dinner, picnic or party food and are often cooked outdoors on barbecue grills. A high-quality hamburger patty is made entirely of ground (minced) beef and seasonings; these may be described as "all-beef hamburger" or "all-beef
Rudolf Hamburger case of Rudolf Hamburger was evidently one that the government took seriously. Hamburger was held in a wooden building which was attached to a police station in Chongqing for approximately thee weeks. He was interrogated about who he was, who had sent him and what he was doing. No Chinese reports of his interrogations have been accessed, but recalling these events many years later he indicated strongly that he had given nothing away. After eight days the interrogation sessions resumed, now involving serious physical torture, but still Hamburger did not betry his comrades. Early in the morning, after approximately three