Having lived down the street from this Williamsburg outpost for most of 2007, I can honestly say I've had the burger at Diner on about 40 occasions and it has never failed me. The only difference I've seen over the years is a $1 increase in the price, which is now set at $13 for the burger and fries. The real beauty of this grass-fed burger is the quality of the meat, which is received 'whole animal' and butchered at the restaurant's Marlow & Daughters meat shop down the street.
Resting atop a toasted bun, the perfectly-salted burger comes with just two garnishes, ultra fresh leaf lettuce and pickled onions (mayo on the side), which is really all it needs. Cheese lovers will also delight in the Vermont cheddar-only option, a sharp and tasty compliment to the juicy burger. Diner's rendition also lives up to my extremely picky "Goldilocks" rule of thumb for size, coming in at the perfect thickness of not too fat and not too thin – and when ordered medium it still maintains a light pink hue at its core.
Diner's burger is so good it makes it hard for me to order anything else when I visit. This is tricky because not only do they seem to excel at every dish on the menu, but they are serious about changing it up every day and according to season. The menu you receive at the table only lists a few staple items (such as the burger), and everything else is recounted to you by the waiter (who may just be the drummer from Here We Go Magic if they're not on tour), who writes it down for you on the white paper table cloth.
Williamsburg, Brooklyn 11211
They don't take reservations and there is usually a long wait but the friendly staff do their best to get you a seat, or at least a beer to sip while you wait, as fast as possible.