Yes! Pour all of the batter into a well-greased 9x13 pan and bake at 350 degrees F for 35 to 40 minutes. I just baked one and it had taken 37 minutes to bake through. To check for doneness, press your finger in the center of the cake. If the cake springs back, it's done. If an indentation remains, it needs to bake longer. You can also insert a toothpick or skewer into the center of the cake. It will come out with moist crumbs or clean when it's done.