What is a prepared baking sheet?

A "prepared baking sheet" simply means a baking sheet that's ready to receive your food. This usually involves:

* Greasing: A thin layer of butter or oil is spread on the surface to prevent sticking.

* Lining: The baking sheet is covered with parchment paper, foil, or silicone baking mats. This helps with easy cleanup and prevents food from sticking.

* Both: Sometimes, you'll grease the baking sheet *and* line it with parchment paper for extra insurance against sticking.

The exact preparation depends on what you're baking. Some foods, like cookies, are better on parchment paper, while others, like brownies, may benefit from being greased.

Here are some examples of how a prepared baking sheet might be used:

* Baking cookies: Line the sheet with parchment paper to prevent sticking and for easy removal.

* Roasting vegetables: Grease the sheet to prevent sticking and ensure even browning.

* Making sheet pan meals: Line the sheet with parchment paper for easy cleanup and to help with even cooking.

When a recipe says "prepared baking sheet," it's a good idea to read the full recipe for specific instructions on how to prepare it.