The ornamental design for a cookware handle, as shown and described.
FIG. 1 is a front view of a new cookware handle design;
FIG. 2 is a side view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a front perspective view thereof;
FIG. 6 is a rear perspective view thereof;
FIG. 7 is a front elevation view thereof;
FIG. 8 is a side elevation view thereof;
FIG. 9 is a top elevation view thereof; and,
FIG. 10 is a perspective view thereof.
The dash-dot broken lines immediately adjacent the shaded areas represent the bounds of the claim and all other evenly-spaced broken lines in FIGS. 7-10 represent the environment in which the design resides. None of the broken lines form a part of the claimed design.