Shake Shack ChickenShack
Shake Shack
July 7, 2015 10:20 AM EDT

Chik-Fil-A and KFC, hunker down. Shake Shack is releasing a limited run of chicken sandwiches in its three Brooklyn locations starting Tuesday.

The ChickenShack, which costs $6.29, includes crispy all-natural chicken, lettuce, pickles and buttermilk herb mayo. It’s the first chicken sandwich offered by the trendy burger chain–but probably not the last.

The experimental new offering could be an attempt by Shake Shack to spice up more than its menu. The company’s stock is down about 43% after popping more than 120% on its first day of trading on public markets in January. On a more local level, Shake Shack is also facing competition from Momofuku founder David Chang, who recently opened a fried chicken sandwich restaurant in New York City.

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