A slow cooker for heating food stuffs includes a housing defining a heating cavity and a housing rim. A heating element is disposed within the housing to heat the heating cavity. A container has a generally hollow interior and a container rim and is shaped and sized to fit within the heating cavity for heating thereof by the heating element. A lid is sized and shaped to at least partially cover an opening of the container and includes a gasket around an outer edge thereof for sealing engagement with the container rim. The slow cooker further includes at least one clip for selectively retaining the lid in sealing engagement with the container rim to inhibit leakage of the food stuffs. The at least one clip is an over-the-center clip and includes a hook and a catch to selectively retain the lid in sealing engagement with the container rim.