City Matter Smashes the onions specifically in to the burger patty over the griddle, and then cooks until the meat has crispy edges. Or consider their novel take on a chili cheese coney, which places a grilled hotdog in addition to a load of bean chili onto a burger bun. https://www.google.com/maps/d/u/0/viewer?mid=1VwN9wrI51HR0ZD9XuY7kfCbLjbORoL0