I made the classic Toll House Cookie Bars in 3 different pan sizes to see how they'd turn out.
Left to right: 11x17-inch pan, 13x9-inch pan, 9x9-inch pan.
The 9x9-inch pan gets nice and gooey on the inside (reminds me of something from a bakery) and the 11x17-inch pan is perfect for crispy cookie lovers.
Baking times and the recipe (which you probably already know!) are here: https://www.giftofhospitality.com/toll-house-cookie-bars-3-ways/