I've been eating alot of chicken with mole sauce lately and I nominate Castro's Coffee Shop in Clinton Hill as NY's best. The sauce blends nice chocolate flavor w/ spice and zing and tastes like it was cooked with much love and knowledge as mole is a complex sauce. It should be noted that Los Politos also makes a prett good mole sauce but not nearly as good as Casrto's. I reccomend going to Castro's in the day time as the woman cook is there and she is amazing. She loves to nibble as she cookes, always a good sign and she makes wondrful sopes, nice and spicy.