[Photograph: Mark Sanders]

Is that a beef patty glistening in butter, I see? Yesssssss. Marc Sanders of Burgatory gives thumbs up to the Truffle Butter Burger at Sketch in Philadelphia.

Related
Grilled: Marc Sanders of Burgatory
Photo of the Day: Bourbon Butter Burger from Standard Diner in New Mexico
Photo of the Day: The Cheesehead Burger from Solly's Grille