Centuries-old brews are cracking open a new wave of coffee enthusiasts. This unusual drink, egg coffee, born out of Scandinavian immigrants in America's Midwest, has gained momentum on social media.

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Despite the name, Swedish Egg Coffee actually finds its origins in America. A raw egg is whisked into ground coffee before brewing. The egg whites act to filter out impurities, leaving a shockingly smooth cup.
Egg coffee knows no borders. Whipped egg yolks, sugar, and condensed milk on top of strong Vietnamese coffee-the "Cà Phê Trứng"-emerged in the 1940s in Vietnam. And then, this rich treat became a certain cultural phenomenon.
This weird brew can easily be one of your new obsessions with coffee, linking you to a deep cultural heritage.