Ingredients  

For the dough

230 ml lukewarm whole milk

7 g dry yeast

1 egg

3 g salt (1/2 tsp)

400 g all-purpose flour 

150 g butter

For the cream

250 g sugar

500 ml whole milk

1 egg

45 g corn starch

15 g vanilla sugar

For the topping 

1 egg yolk

1 tsp vegetable oil