Mix all ingredients (A1) in a mixing bowl and beat for 1min at low speed or until evenly mix.
Scarpe down the mixture and beat at medium speed for 2mins then set is aside.
To prepare meringue (A2), mix egg white into a mixing bowl and hand whisk mixture becomes foamy. Then gradually add sugar and continue to whisk until light and fluffy at medium speed.
Pre-heat oven at 170°C (bottom heat) or 180°C (top heat), mix meringue into the cake batter and pour cake batter on a baking tray lined with parchment paper and bake it for 12mins or until it’s well-baked.
Mix all ingredients (B1) in a mixing bowl and hand whisk until evenly mix then set aside.
Hand whisk ingredient (B2) to firm foam then mix with mixture B1 and set the custard cream aside.
Finally, decorate custard cream and ingredients (C) to your desire preference and it is ready to be serve.