What does it mean to dust a work surface?

Dusting a work surface refers to the technique of lightly sprinkling flour or other substances—such as cocoa powder, cornstarch, or sugar—over the surface to create a non-stick barrier. This practice is essential in baking and preparing doughs to prevent them from adhering to the surface being worked on, thus ensuring that the dough can be rolled out or shaped without tearing or becoming unusable. The term "dust" implies a light application, which is key; too much of the substance can affect the texture or flavor of the final product.

The other options highlight actions that are either too rigorous or inappropriate for what is meant by dusting. For example, cleaning the surface thoroughly or washing it with water does not provide the non-stick quality required during food preparation. Applying a heavy coating of sugar is also excessive and not suitable for most types of dough, which would lead to the opposite of the intended purpose of dusting. Dusting efficiently balances the need for a workable surface and the integrity of the ingredients being used.