Beat the eggs for the cake. To do this, take a deep bowl and break them into it. Turn on the mixer and mix until the mass becomes fluffy and light. This takes about 5 minutes.
Without turning off the mixer, add granulated sugar and vanilla sugar to the mixture.
Add flour and baking powder to the vanilla sponge cake batter. Mix gently with a spatula.
Proceed to the final stage of preparation. To do this, pour vegetable oil and boiling water into the dough. Quickly stir in a circle with a spatula. There should be no lumps. Put the dough in the form and cook for 40 minutes.
Remove the cake from the pan and wrap it in cling film. Put it in the refrigerator for 7 hours. No need to wait for the pastry to cool. As you can see, the vanilla sponge cake recipe is very simple.