After tracking this place for a while, last night I finally had the chance to sample one of the best burgers on earth. RF O'Sullivan's is a dive, pure and simple, with one claim to fame... a mean burger. My friend and I slid into our table around 8 p.m. and ordered two black and bleu burgers (the meat liberally coated with crushed black pepper and served with bleu cheese). All burgers come with fries and onion rings and a couple of slices of pickle. All the choices (cajun, mushroom, smoked gouda, etc) are in the $7.50 - 8.50 range. As we surveyed the scene, we noticed that every one of the tables at which people were eating had at least one burger on it. It seems that at this place, everyone knows the score, and though O'Sullivan's offers other items -- all of the buffalo wing/steak tip school of bar food -- no one was eating anything else. We tracked the anticipated 20 minute wait (all these bad boys are formed by hand, cooked to perfection, and served on a toasted bun with onion, lettuce, tomato) and were practically drooling when our plates arrived. The burgers were perfectly cooked -- medium rare as we ordered, but they will cook meat rare, which is hard to find in this day and age. Simply put, there is NO WAY to get your mouth around these huge things, and they drip and slip and make a big mess. The extremely competent waitress brought stacks of napkins without being asked, refilled draft beers quickly, and whisked our plates away when we finally had to admit defeat. The burger itself is sort of round and rough -- crispy on the outside and juicy on the inside. The black pepper was great, but the bleu cheese was not as good. It might have been bleu cheese dressing from a bottle, and probably does double duty with the wings and salad options, but we didn't mind that much. The onion rings were very good, too, with real onions and none of that seasoned batter stuff. Just old school rings and fries, piping hot and ungreasy. With minimal decor, sketchy bathrooms and crap wine by the glass, this is definitely a guy's spot, and the crowd varies from local Joe to Harvard student on the cheap. Fully sated, undoing the top button and leaning back to watch the Sox on one of the large screen tv's, we had no question why this place is popular. It's all about the burger, man.
O'Sullivan's pub is located at 282 Beacon Street in Somerville.