Pre-heat your oven at 180°

Grease your baking pan and measure all the ingredients

Sieve flour n cocoa and set aside

Separate the egg yolk from the egg whites

In a bowl beat egg whites until peaks form

Very carefully sprinkle the sugar on top of the egg whites,being careful not to collapse them.Add the egg yolks and essence and beat until soft firm peaks form

Fold in the mixture of flour n cocoa gently so that the air doesn't escape (i usually use my fingers)

Put the batter into the baking tin and bake for 40-50minutes or until a skewer inserted comes out clean