Hot oil spill Biang Biang noodles

I went to china years ago and in Shanghai I went to a subway-esque underground fast food place that served these “Hot Oil Spill” noodles. I’ve been on the hunt for them ever since. Does anyone know what I’m talking about and where I can find something similar around here? The closest I’ve found online to what the dish looks like and potentially is, is garlic chili oil noodles