Bread And Baking - Custard Crown Danish Pastry

Ingredients

• 350 g Strong bread flour
• 150 ml Milk full fat warm no more than 40'c
• 50 g Caster sugar
• 50 g Butter unsalted soft
• 1 Egg whole
• 1 Egg yolk only
• 2 tsp Dried yeast
• 1/2 tsp Salt
• 350 g Butter unsalted soft
• 25 g Plain flour
• 380 g Crème pâtissier cold (see recipe)
• 80 g Icing sugar
• 1 tbsp Milk
• 1 tsp Vanilla extract or paste