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New Truffle Focused Menu at Shake Shack!

The black truffle burger and fries feature real black truffle sauce, made with Regalis Foods’ USDA Organic Black Truffle Arbequina Oil, the only truly natural truffle product on the market made from Spanish black truffles and California extra virgin olive oil. Founded by Ian Purkayastha and based in New York City, Regalis is a specialty food purveyor known […]