Custard Cream Sauce (puff Filling)
1.
Prepare all materials
2.
Whip the egg yolk with powdered sugar until the color becomes lighter and the volume increases
3.
Add cornstarch and mix until there is no dry powder
4.
Add the vanilla seeds scraped from the vanilla pods to the milk, then cut the coriander sticks into small pieces and put them into the milk pan
5.
Heat to boiling and turn off the heat
6.
Slowly pour into the batter while stirring constantly
7.
Pour back into the milk pan, filter out impurities with a sieve
8.
Continue to heat, keep stirring, the batter thickens and gradually cooked
9.
Remove from heat, add butter while still hot, mix well
10.
Cover and put in the refrigerator for 2 hours
11.
Take out the batter, add whipped cream in portions and beat until smooth and no particles