1. Put the egg yolk and caster sugar in a bowl
2. Put hot water in the pot and put the bowl into the pot. Heat over water and stir constantly until the sugar dissolves and the egg yolk turns white
3. Beat the whipping cream to 7 for distribution
4. Mascarpone uses a whisk to loosen the hair, add the egg yolk paste. Mix the whipped cream evenly and serve as cheese filling
5. Pour in the right amount of coffee wine
6. Take a finger biscuit and quickly soak it in coffee wine,
7. Spread to the bottom of the cup
8. Pour part of the cheese filling at the bottom of the cup
9. Put in the biscuits
10. Pour the cheese filling
11. Repeat the above steps until it is filled, smooth and put in the refrigerator for more than 4 hours
12. Sprinkle cocoa powder before eating
13. You can also decorate with powdered sugar
