Creme brulee donuts

My battery run out for video camera so after making Custard creme there is only photos.

How to make Creme Brulee Donuts.
This recipe yields 12 donuts

DOUGH Ingredients:
250ml whole milk
50g sugar
1 egg
7g instant yeast
400g all purpose flour
5g salt
30g unsalted butter softened

500ml whole milk
100g sugar

4 egg yolks
125ml milk
2 tsp vanilla sugar
3 tablespoons cornstarch
20g butter

300g sugar
125ml water

Recipe I use base to this video