Add sugar and butter to a bowl,mix well till it soften and changes color

Break the eggs and whisk them,add the egg water carefully to the sugar and butter mix, mix again,add sieved flour,baking powder and vanilla flavor,mix again till everything incorporates

Rub oil or butter in the cake tins, add the batter to the tin, do not fill the tin,add half because it will rise and double the size,preheat your oven and bake till done,insert a toothpick to see if is cooked or not. Make sure to be regulating the heat