![WhiteCastleImpossibleBurger 9990](https://static-ssl.businessinsider.com/image/5ad0bc3c146e711d008b47cb-2000/whitecastleimpossibleburger-9990.jpg)
Business Insider/Jessica Tyler
The White Castle slider (left) vs the Impossible Foods slider (right).
But now, the 97-year-old chain is testing out a more vegetarian-friendly option.
On Thursday, 140 White Castle locations in New York, New Jersey, and Illinois debuted a plant-based slider by the Silicon Valley startup Impossible Foods. Founded in 2011, Impossible has created a meatless burger that mimics the taste of beef.
We recently went to a White Castle in Brooklyn to see how White Castle's original sliders stack up to Impossible's. There was a clear winner.