The ornamental design for a cookingglove, as shown and described.
FIG. 1 is a front perspective view of the cooking glove showing my new design;
FIG. 2 is a front elevational view of the cooking glove;
FIG. 3 is a front elevational view of a second embodiment of the cooking glove it being understood the remaining views are appropriately relative to the first embodiment;
FIG. 4 is a rear elevational view of the cooking glove;
FIG. 5 is a right side elevational view of the cooking glove;
FIG. 6 is a left side elevational view of the cooking glove;