Banana Cake

Beat the eggs with vanilla sugar on low mixer speed.

Once it foams, gradually add the sugar in portions while increasing the mixer speed.

Whip the eggs and sugar until fluffy and pale, about 5 minutes.

Wash the lemon thoroughly. Grate the zest — the very top layer of the peel — using a fine grater.

Sift the flour and baking powder into the eggs.

Gently fold in the flour with a silicone spatula using bottom-to-top folding motions.

Dice two bananas and fold them gently into the batter.

Take a baking pan, cut out a circle of parchment paper, and line the bottom.

Pour the batter into the pan.

Peel the remaining 2 bananas, cut them in half lengthwise, and arrange them cut-side up on top of the batter.

Bake the cake in a preheated oven at 180°C (350°F) for 40-45 minutes.

Check for doneness with a wooden skewer.