A convection oven uses a fan to circulate hot air throughout the oven cavity. When the hot air is blowing, food tends to cook more quickly than in a conventional oven. The hot air also allows chemical reactions that occur during the cooking process, making flakier pie crusts and moist meat with a crispy skin. Convection ovens tend to bake approximately 25 percent faster than conventional ovens. You can use them to make everything from a turkey to brownies.
Preheat your convection oven to 300 degrees Fahrenheit. This is about 25 degrees less than a conventional oven. Keep in mind that convection ovens typically preheat quicker than conventional ones.
Spray your baking pan with nonfat cooking spray.
Prepare brownies as indicated by recipe of your choice. Pour the batter into the pan. Smooth the top.
Place the pan in the oven, and bake for 25 minutes. Check the brownies to be sure they are cooked through by sticking a toothpick into the center of the pan. The toothpick should come out clean with a few moist brownie crumbs on it when fully cooked.
Let the brownies cool completely, and then lift them out of the pan. Cut into squares and serve.