longhall writes : Can I bake more than one sheet of cookies at a time?
Chef writes : Most definitely! I do it all the time! Simply adjust your oven racks so that they are the upper-middle and lower-middle locations, pre-heat your oven appropriately, then when it comes time to rotate your cookie sheets, simply rotate them as usual (side-to-side), but also switch the shelves they are on! You should do this about one minute past the half-way mark. You may experience with different recipes that this isn’t so successful as with others. For very delicate cookies that depend a great deal on browning (sugar cookies), the top or bottom may brown more evenly than the other – but, if these are only for family enjoyment, you will enjoy no matter what! :) Happy baking!
For more detail, see Rotate Those Sheets! and Ignore the Beep!
Cool. Now for an even more important question: can I EAT more than 2 pans of cookies at a time? Yummy! :)