Undermount cooktop assembly

A cooktop assembly, comprising:

• a cooktop body defining an upper surface having at least one burner disposed thereon, a lower surface opposite the upper surface, a side wall extending between the upper surface and the lower surface, and a flange extending continuously with the side wall along a first lateral edge of the cooktop body to a position disposed above the upper surface;
• a first attachment member having a first portion defining a first mounting area thereon and a second portion extending normal to the first portion, the first attachment member further defining a second mounting area thereon, the first attachment member being assembleable with the cooktop with the first mounting area in extending along a first area of the lower surface of the cooktop, the second portion extending along the side wall, and the second mounting area being connectable with an underside of a countertop to at least partially retain the cooktop to the countertop with the upper surface of the cooktop in contact with the lower surface of the countertop;
• and
• a fastener configured for assembly through an aperture in the flange of the cooktop body to retain the flange with an edge of an opening defined in the countertop when the cooktop is assembled with the first attachment member.