Step 1

Beat the eggs with the sugar using a mixer, until they double in volume.

Step 2

Add the oil and yogurt and beat again.

Step 3

Sift the flour with the baking powder and add it gradually, while stirring by hand. Add the vanilla, finely ground walnuts and bananas, which we have previously been mashed with a fork.

Step 4

Cover a rectangular sponge cake tin with kitchen paper and pour the sponge cake mixture inside. Bake for about 35-40 minutes in a preheated oven at 360°F (180°C) without a fan.

Step 5

Take out the sponge cake once it cools completely.

Step 6

Serve it with vanilla ice cream , fresh mint leaves and sprinkled with powdered sugar.

Step 7

The banana sponge cake with brown sugar and walnuts is ready.