Pour batter into oiled pan and pop it in the oven. Bake for 32 minutes for a fudgy cake or 35 minutes for a lighter but more brittle one. Cool in the pan for at least 10 minutes before cutting. If you want to remove the cake from the pan, let it cool completely, about 90 minutes. Then run a knife around the outside edge of the cake to loosen. Put a dinner plate over the cake pan, hold them together, and flip them over. When the brownie cake falls onto the plate, remove the cake pan and peel off the parchment. Put another plate on the brownies’ bottom, hold both plates together, and flip the “sandwich.” Remove the top plate.