You can make the cake a day or two in advance. Cover tightly with plastic wrap once cool until you're ready to serve it. Leftover cake can be stored at room temperature for a few days, or even longer in the refrigerator. Cover it tightly before storing. You can also freeze it, tightly wrapped, for up to two months.Want to add nuts? Stir in ½ cup chopped pecans or walnuts to the cake batter. You could also sprinkle them on top while the glaze is still wet.