Preheat oven to 180..grease and line with wax wrap 2 swiss roll pans
One third cup castor sugar
Beat egg whites stiff..gradually beat in castor sugar
1 cup cake flour
½ cup castor sugar
2 level teaspoon baking powder
¼ cup oil
One third cup water
2 tablespoon cocoa
Sift the dry ingredients into the egg yolks
Add the oil,water,and essence..beat until blended..
Fold the 2 mixtures together..divide between the 2 pans..bake for approx 7-10 minutes each..turn out onto a wax paper sprinkled with sugar while still hot..remove bottom wax paper..roll and allow to cool...when cool spread inside with beaten fresh cream..
Make a ganache by melting 1 plain slab,add nestle cream and mix till smooth..decorate as desired