M1)To prepare moca truffle cake, first preheat the oven to 180 degrees C.
Place a butter paper on a cake tin of 9 X 13÷ cake tin. Coat butter on the paper.
Mix the dark chocolate and instant coffee powder mixture in a small bowl and microwave it for 1 minute. Take it out and stir till it becomes smooth.
Whisk egg white till stiff in another big bowl.
In another bowl mix egg yolk and sugar. Beat the mixture for 10 minutes till it becomes smooth.
Mix the prepared chocolate mixture with it slowly.
Take 1 tbsp of whisked egg white and mix it with the above mixture. Pour the remaining egg white slowly and fold it with the mixture.
Convert the mixture to the prepared cake tin and bake it in the preheated oven for 30 minutes.
Once the cake is set, sprinkle some cocoa powder in a tea towel and place the cake on it.
Remove the butter paper and let it cool.
Slice the cake horizontally into three equal layers.
12)Heat a sauce pan in low flame and melt the dark chocolate slice and cream in it till the mixture is smooth.
Place the first layer of cake on a flat plate and spread the ganache on it. Place the 2nd layer on top of this layer and repeat the process.
Pour the ganache evenly on the top and sides of the cake.
Garnish with chocolate slices and curls.
Moca truflle cake is ready.