Good question. I think I see, besides the 1/3 lb. patty, cheese, bacon, red onion, arugula and--blueberry sauce?
Would they have those sold in those steakhouses?
They must be expensive.
I've had some wonderful burgers in my day but I've never seen one in a restaurant like that.
You are clearly a New Yorker...ketchup on burgers and mustard on hot dogs I'm guessing.It needs either ketchup or BBQ sauce.