What is Baking? Baking is the way of cooking food in dry heat inside an oven. Since not all oven heat gauges are made the same, it is important to use an oven thermometer to keep track of how hot the oven is, so the dish won't be over or undercooked. Timer is also important. I learned how to bake three years ago, through my mother-in-law. She shared to me her recipes from her baking lessons. First, I tried brownies, I didn't get it perfectly, so I tried again, until I got it. It's nice to hear that they liked it.