YoYo Smash Burger in Upper West Side

It is past midnight on the Upper West Side and the kitchen on Amsterdam is still going. That is when the smash burger makes the most sense. One patty pressed thin on the grill so the edges crisp, a slice of cheese, pickles, caramelized onions and YoYo Sauce. A single is $6.99. If one patty is not going to cut it, stack it as a double, a triple or a 4x4. We are open from 11 AM until 2 AM every day.