Preheating the oven: these are the times that you can do without this step

There are other nice tips to do when the dish is ready. For example, you can leave the oven door out open so that its heat spreads and warms you without the need to increase the heat. You can also slip spices (such as stick cinnamon or powder into a cup) into a hot, half-open oven to diffuse a good smell. Finally, think about cleaning the oven after each use. It will still be hot, but not hot, and its fats will be easy to remove effortlessly.