EL SECRETO DEL BIZCOCHO ESPONJOSO ! Receta Fácil para Deleitar

THE SECRET OF THE SPONGE CAKE! Easy Recipe to Delight
Ingredients
6 eggs
275g sugar (150g for the whites and 125g for the yolks)
Pinch of salt
100ml milk
30ml oil
Zest of half a lemon
300g all-purpose flour
1 tbsp baking powder