The Romans loved a sauce called garum, and believe it or not—it was made from fermented fish guts! Workers packed tiny fish, like anchovies, into jars with salt and left them in the hot sun for weeks until they melted into a strong, smelly liquid. Ew! But to the Romans, this was delicious. They poured garum on almost everything—bread, vegetables, meat, and even fruit—just like we use ketchup or soy sauce today. The richest Romans bought fancy garum made from rare fish, while everyone else used the cheaper kind. It smelled awful, but tasted amazing to them!