Most fruitcakes need to be baked at low temperatures for a long time to ensure all the batter gets cooked without drying out. If you notice the top of the cake browning too quickly, you can cover it with a sheet of foil or layer the pan with a few sheets of brown paper beforehand. Cooking times might also need to be adjusted depending on your oven or the size of pan you're using. Just keep an eye on things to make sure you don't "overbake" your fruitcake. This recipe bakes the cake for 5 hours at 275 °F.