A lid assembly and a knife adapted to be attached to a jar, the lid assembly including: a cylindrical jar sleeve adapted to be secured to the open end of the jar and having a jar sleeve circumferential portion at the upper end thereof. The lid assembly also includes a lid adapted to be removably attached to the jar sleeve and having a lid circumferential portion, one of the lid and jar sleeve having a groove adapted to receive the circumferential portion of the other of the lid and jar sleeve.