Hitlerszalonna (Hungarian: "Hitler bacon"), known in the modern day as sütésálló lekvár ("ovenproof jam"), is a dense fruit jam that originated in the Kingdom of Hungary during World War II.[1] It was sold in brick shaped blocks held in a piece of paper, and was sliced like szalonna. Soldiers kept it in a case and it could be cooked with other foods.[2] In the modern day, sütésálló lekvár is often sold in small portion cups. The term itself is considered slang and defined as something like "tough fruit".[3]