Article: Preheat the oven to 375 degrees. Line a 15 inch (38.1cm) by 10 inch (25.4cm) baking pan with parchment paper. Grease the parchment paper with olive oil or cooking oil to make sure the cake won't stick. In order to make a log roll, the cake must be baked in a large, shallow pan, rather than a stout pan. A cookie sheet with 1-inch high sides should do the trick. Don't skimp on greasing the parchment paper. It's important for the cake to stay intact when you lift it from the pan. Place the yolks in a large mixing bowl, and use either a whisk or a hand mixture to beat them well, until they're light and yellow. Add 1/2 cup of the sugar and the pumpkin, and continue beating until the mixture is smooth and the sugar has dissolved. Place the egg whites in a separate mixing bowl. Beat them until soft peaks begin to form. Add the remaining 1/2 cup of sugar and continue beating until the egg whites become stiffer and glossy. Be sure the beaters or whisk you use to beat the whites are clean and dry, or you won't be able to get peaks to form. Add the sugar gradually as you beat, rather than pouring it in all at once, to achieve a glossy texture. Fold the egg white mixture into the egg yolk mixture with a spatula. In a small bowl, combine the flour, baking soda, cinnamon, nutmeg, and salt, then pour it into the wet mixture. Use the spatula to gently stir the ingredients until the batter comes together. Pour the batter into the baking pan. Use the spatula to smooth it evenly across the pan, all the way to the sides and into the corners. Place the pan in the oven and bake the cake for about 15 minutes. Remove it from the oven and let it cool for 5 minutes. Check the cake by touching it with the back of a spoon. If it springs back, it's finished. Don't overbake the cake, or it will get crumbly. Remove it from the oven when it is just finished. Don't let the cake cool completely before moving to the next step.
What is a summary of what this article is about?
Get ready to bake the cake. Make the egg yolk mixture. Make the egg white mixture. Finish the batter. Bake the cake.