Calatayud sponge cake

Ingredients

Ingredients: 200g of flour 2 spoons of yeast 3 spoons of fine sugar 125g of ground caster sugar 6 eggs oil

Preparation

Beat the egg yolks with the caster sugar until it forms a spongy mixture. Next, beat the whites too, until they are stiff. Mix the yeast with the flour. In a deep bowl, put the beaten yolks with the sugar, together with the mixture of flour and yeast and the stiff whites. Then add the fine sugar. With the help of an icing bag, put this mixture into parchment paper cake cases greased with oil. Put them all on a baking tray or sheet and bake in the oven at a low heat for 20 minutes.