Cheap and easy sponge cake!!sponge cake without milk, butter and oil!!

Cheap and easy sponge cake!!sponge cake without milk, butter and oil!!
The easiest sponge cake in the world, sponge cake without milk, butter and oil!!
Make this cake for your birthday and decorate it with cream. The texture of this cake is very soft and delicate. The ingredients are available. Ingredients:
eggs: 10
sugar: 250 grams
cake flour: 250 grams
vanilla: 1 Teaspoons
baking powder: 2.5 teaspoons
boiling water: 1/4 cup or 5 tablespoons
recipes cake:
separate the egg whites and yolks, beat the whites with a whisk until it takes shape, beat the egg yolks with vanilla and sugar for about 5 minutes. beat, then add flour and baking powder to it and whisk, finally add the egg whites. Preheat the oven for 10 minutes at 180°C. Cover the bottom of the mold with oil paper, pour the ingredients into the mold for 45 minutes at 180°C. Put it in the oven at 350°F.