The ornamental design for a cookware handle, as shown and described.
FIG. 1 is a perspective view showing our new design of a cookware handle;
FIG. 2 is a rear side view thereof;
FIG. 3 is a front side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view showing the cookware handle attached to a piece of cookware.
The dash-dot-dash broken lines represent the bounds of the claimed design while all other broken lines represent environment: The broken lines form no part of the claimed design.