Fluffy Castella Sponge Cake
Ingredients 6 egg whites 6 egg yolks 85 g sugar 80 ml of vegetable oil 90 g cake flour/sponge flour 70 ml of milk 1/4 tsp salt Instructions Beat the egg whites until foamy, then add sugar. Keep beating until still peak formed. Heat the oil in a microwave for 90 seconds on high, or …