As far back as the 1970s, international fast food restaurant chain Burger King has attempted to introduce a premium line of burgers. The chain’s first major lamb burgers was part of their Specialty Sandwich line that was introduced in 1979 was the Sirloin Steak Sandwich. After the failure of the Specialty Sandwich line, Burger King went on to introduce several other premium burgers made from a variety of meats.
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