Starbucks will bring back seasonal Eggnog Latte nationwide this month after customers demanded it. It had dropped the beverage, which it has offered seasonally for years, to try to simplify its expanding menu. "We made a mistake," says spokeswoman Linda Mills. "We are very sorry." Last spring, after the company began selling its lemon cake and pumpkin bread in miniature loaves instead of slices, it got complaints and quickly changed back to the slices.