Classic Choux Pastry Cream Cake
Prepare the Cream:
In a saucepan, whisk together eggs, sugar, vanilla sugar, and cornstarch until smooth.
Gradually add the milk, stirring continuously to combine.
Cook over medium heat, stirring constantly, until thickened to a pudding-like consistency.
Cover with cling film to prevent a skin from forming and cool completely.
Prepare the Choux Pastry: