A high efficiency electrosurgical electrode with an advanced metallic tip and insulator design, and a method of conducting an electrosurgical procedure with such electrode are disclosed. The electrosurgical electrode comprises a metallic body portion of various geometries, a metallic tip and a dielectric insulator adjacent the metallic body portion. The metallic tip comprises a plurality of metallic protuberances of various forms and geometries, which are separated by a plurality of grooves, also of various geometries. The plurality of grooves may be filled with a dielectric material to form various flat dielectric regions surrounding the plurality of metallic protuberances.