A cooking apparatus comprising: a first glass forming a first region ; a second glass forming a second region separated from the first region ; and a coupling member configured to couple the first glass to the second glass , wherein the coupling member comprises: an upper flange configured to cover a portion of an upper surface of the first glass and a portion of an upper surface of the second glass to distinguish the first region from the second region ; a lower flange configured to support a portion of a lower surface of the first glass and a portion of a lower surface of the second glass ; a column configured to connect the upper flange to the lower flange , and an insertion groove formed by the upper flange , the lower flange , and the column , and into which the first glass or the second glass is configured to be inserted, characterized in that the cooking apparatus further comprising an adhesive member disposed in the insertion groove to adhere the first glass or the second glass to the coupling member , wherein the upper flange comprises an upper groove into which the adhesive member is configured to be inserted, the upper groove is configured to increase a contact area between the adhesive member and the first glass or the second glass , and the upper groove is formed by recessing a lower surface of the upper flange upward. a first glass forming a first region ; a second glass forming a second region separated from the first region ; and a coupling member configured to couple the first glass to the second glass , wherein the coupling member comprises: an upper flange configured to cover a portion of an upper surface of the first glass and a portion of an upper surface of the second glass to distinguish the first region from the second region ; a lower flange configured to support a portion of a lower surface of the first glass and a portion of a lower surface of the second glass ; a column configured to connect the upper flange to the lower flange , and an insertion groove formed by the upper flange , the lower flange , and the column , and into which the first glass or the second glass is configured to be inserted, characterized in that the cooking apparatus further comprising an adhesive member disposed in the insertion groove to adhere the first glass or the second glass to the coupling member , wherein the upper flange comprises an upper groove into which the adhesive member is configured to be inserted, the upper groove is configured to increase a contact area between the adhesive member and the first glass or the second glass , and the upper groove is formed by recessing a lower surface of the upper flange upward. an upper flange configured to cover a portion of an upper surface of the first glass and a portion of an upper surface of the second glass to distinguish the first region from the second region ; a lower flange configured to support a portion of a lower surface of the first glass and a portion of a lower surface of the second glass ; a column configured to connect the upper flange to the lower flange , and an insertion groove formed by the upper flange , the lower flange , and the column , and into which the first glass or the second glass is configured to be inserted, characterized in that the cooking apparatus further comprising an adhesive member disposed in the insertion groove to adhere the first glass or the second glass to the coupling member , wherein the upper flange comprises an upper groove into which the adhesive member is configured to be inserted, the upper groove is configured to increase a contact area between the adhesive member and the first glass or the second glass , and the upper groove is formed by recessing a lower surface of the upper flange upward. <EOS>