Abstract: A cookware handle insulator has a main body formed from a thermal insulating material and has an outer surface providing a cold surface. A slot aperture runs longitudinally along an axis of the main body and provides an inner surface and a space to accommodate a longitudinal cookware handle. The inner surface provides a hot surface of the main body. Flexible slot edges extend inwardly toward the slot aperture and have a taper for engaging a longitudinal cookware handle surface when the cookware handle insulator is pushed onto the cookware handle. The slot edge inner surface engages the longitudinal cookware handle surface and maintains the cookware handle insulator position on the cookware handle when the cookware handle insulator is installed. Another embodiment has a substantially triangular cross-section with two flexible side sections to clasp the cookware handle when installed. A method of installing the cookware handle insulator is also provided.