Located in the southeast corner of Madison Square Park,Shake Shack is a self-serve establishment. Wait in line with the pooch for great burgers, hot dogs, and fries. It even offers special menu items just for the dogs: the pooch-ini is a treat of ShackBurger dog biscuits, peanut butter sauce and vanilla custard, and the bag oÃ• bones is a doggie bag filled with ShackBurger dog biscuits. For dessert, enjoy a thick shake or cup or cone of frozen custard. Relax at twilight with your furry best friend enjoying a cold beer or a nice glass of wine here.