Beat the egg. To do this, break it into a deep bowl and add sugar. Stir for 5-6 minutes until the mixture turns white. You can use a fork, but a mixer will be much more convenient.
Pour in the milk and stir.
Add vegetable oil to the mixture. Stir. According to our recipe, you will need only 3 tbsp of this ingredient.
Add sifted flour. Do it gradually, stirring constantly. Add baking powder, starch and vanilla sugar. Mix until smooth.
Proceed to the final stage of cooking the sponge cake in the microwave. To do this, pour the dough into the mold. Put it in the microwave. Set the power to 800 W and bake for 4 minutes
Take the sponge cake out immediately, don't wait for it to cool. And if you make 3 of these layers, spread them with cream and put them on top of each other, you'll get a wonderful cake. Now you know how to make a sponge cake without an oven.