Abstract: A cooktop gasket includes a sealing body having a stem extending from an upper portion of the gasket and terminating in a retention knuckle. A base is provided that includes a support portion integrally connected to a locking portion, the locking portion having an inner leg, an outer leg, and a retention channel positioned between the inner and outer legs. The retention channel is capable of the receiving the stem of the sealing body when the sealing body and the base are in an engaged position to maintain the relative positions of the base and sealing body. A sealing cam on the stem biases the inner leg toward a cooktop edge to seal against the edge of the cooktop.