Beat ingredient A until foamy. Medium high speed.
Preheat oven at 180C for 30 minutes
Add ingredient B and beat for another 5-10 minutes. After beating, the consistency should be at a stiff peakish. At low speed, add ingredient C then increase speed for 1-2minutes
In a small bowl, add in small amount of the batter into the melted butter and whisk/fold. When everything is well mix, add the small batter that we have mixed into the rest of the batter and fold it gently
Take out 110-150g of the batter and add in ingredient E. This will be our chocoate mixutre. Place the batter into a piping bag. Take out 10 g of the chocolate mixture and place it into a smaller piping bag.This is for the design and the rest are for the base.
Pipe out the chocolate base neatly onto the tray. Then, add in the white batter on top of it. Lastly, grab your small piping bag and create some design on the white batter.
Bake for 20-25 minutes at 180C
When it's done. Add in desired filling on your cake (On the chocolate base) add fold im gently to prevent any breakage then wrap your cake with a cling wrap. If cake is too thick, it may break like the second picture below (i used 8*8 tray which explains the thickness of the cake)
