Mix egg yolks and oil with the sugar. Combine flour and baking powder and add in along with the milk. Add a pinch of salt and gently stir in the egg whites using the spatula
Pour the mixture in a baking tray and cover it with parchment paper and bake in a heated oven (180°C/350°F) for 20 minutes
Leave the sponge cake to to cool down and then cut it in the same size pieces. I have cut my cake into little cubes but feel free to do rectangles as you like
Quickly dip all sides of the cake squares into chocolate, then roll them in coconut. It gets a little messy, but the results are worth it