Soft Castella Sponge Cake

📋 Ingredients

🔸 6 egg whites
🔸 6 egg yolks
🔸 85g sugar (you can also consider using a mixture of white and icing sugar for an even finer texture)
🔸 80ml vegetable oil (neutral oil like sunflower or rapeseed, or even coconut oil for a subtle flavor)

🔸 90g cake flour or sponge flour (you can sift the flour for a lighter texture)
🔸 70ml milk (whole milk or almond milk for a lactose-free alternative)
🔸 1/4 tsp salt 🔸
Optional: 1 tsp vanilla extract (to add a lovely fragrance to the cake)

🥣 Instructions

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