This Ice Cream Sandwich Combines the Everything Bagel and the Black-and-White Cookie

Two iconic New York foods — the everything bagel and the black-and-white cookie — have joined forces, and it's for a good cause. 

Meet the Everything Black, an ice cream sandwich that includes vanilla ice cream coated in everything seasoning between two black-and-white cookies. 

The savory dessert is the brainchild of bakery Kossar’s Bagels & Bialy and ice cream shop Ice & Vice. The Lower East Side businesses are both selling the Everything Black for National Sandwich Month. 

Time is of the essence for those wondering what it's like to taste toasted onion and vanilla fondant all in one bite. The sandwiches are only available for one week and the last day to grab one is this Sunday, August 7.

While the adventurous are biting down on this uniquely New York concoction, they'll also know that they're helping the city's kids. All proceeds from the sandwiches go to Edible Schoolyard NYC, which promotes garden and kitchen classes at public schools. 

Although both foods are quintessentially New York, the origins of the black-and-white cookie and the everything bagel are murky.

New Yorker article entertains the idea that the everything bagel was invented by a Long Island man who worked at a takeout restaurant in the 1980s. Legend has it that he had a revelation one day while cleaning burnt seeds out of a toaster oven. The rest is history.

Black-and-white cookies have been popular in the Northeast for more than a century and it's believed they evolved from the "half moon" cookies found upstate. 

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