The ornamental design for a kitchencounter for a cooking robot, as shown and described.
1. Kitchen counter for a cooking robot
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Right
1.6 : Top
1.7 : Bottom
1.8 : Reference
Reproduction 1.8 is a reference view showing the state in use of the claimed design. The broken line in the reproduction views depicts unclaimed subject matter and forms no part of the claimed design.