The lye-soaked fish recipe created by Vikings is now a holiday favorite at Midwestern church dinners.
Source: Atlas Obscura Lye is a caustic substance that serial killers use to dissolve dead bodies and janitors use to clean clogged drains. For centuries, Scandinavians have used it to prepare dried whitefish, typically cod, in a dish known as lutefisk.
We have the Vikings to thank for the unique
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