Ingredients
400 g (about 3 1/3 cups) cake flour, 300 g (about 12) egg yolks, 250 g (about 8) egg whites, 125 g (about 1/2 cup) cream, and 125 g (about 1/2 cup) jam.
Seasonings
100 g vegetable oil, 300 g (about 1 1/2 cups) white sugar.
Steps
1. Beat the egg whites with 100 g (about 1/2 cup) of granulated sugar until they are fluffy and form a meringue; in a separate bowl, mix the egg yolks with 200 g (about 1 cup) of granulated sugar until well combined into a yolk mixture.
2. Sift the cake flour, then mix it into the egg yolk mixture until smooth. Add the egg white mixture and stir to combine, then mix in the vegetable oil until a thick batter forms. Set aside.
3. Spread the prepared cake batter thinly onto a baking sheet, bake in a medium-temperature oven for about 8 minutes, remove and let cool, then spread whipped cream and jam over the surface, roll it up into a cake roll and serve.