5 small cups of custard sugar
5 small cups of flour
1 1/2 small cup of sunflower oil
Vanilla sugar 6 grams
zest of a lemon,
1 tablespoon of cocoa
powder sugar 100 grams
Beat egg whites with electric beater adding sugar and vanilla sugar bit by bit.
Mix until stiffens. Continue to mix (at medium speed) adding one egg yolk every 2 minutes.
Stop mixing. At the end put flour and lemon zest into mixture.
Grease oven tray (36 cm diameter high 11 cm or similar) with butter or margarine, and sprinkle with flour.
Put the half of the mixture into the tray. Add one large table spoon of cocoa to the rest of the mixture
and poor over onto the mixture.
Preheat oven to 200 degrees C and bake for app. 30 minutes,
until the sides pull away from the pan and a wooden skewer inserted in the middle comes out clean.
Take it warm form the oven and cut into slices.
Sprinkle with powder sugar and serve with vanilla
or chocolate ice cream.