It depends on the temperature of the cookie sheet.
Explanation:
If the temperature of a cookie sheet is higher than the container used by Kennya, then the evaporation of water is faster because the water molecules quickly gains the kinetic energy that helps them in the evaporation while on the other hand, if the cookie sheet is not hot enough as compared to the container, the evaporation rate is slower but if both have same temperature so the evaporation is remain the same.
Its just like Water drops on a pine needle or on anything else, Cohesion is when water is attracted to water. Therefor its Adhesion, because that's when water is attracted to other things or substances.