Here is a herb and cheese biscuit recipe: Herb & Cheese Biscuits Recipe | Recipezaar
For some reason, before sprinkling the final round of cheese on top, prior to insertion into the oven, the recipe calls for the nascent biscuits to be brushed with milk. Why? I anticipate the suggestion that it helps the cheese to stick to the biscuits, but since my oven operates within the Earth's gravitational field, I propose that the milk would be quite superfluous in this application. Is this the case or are there alternative reasons?