Ham and cheese Danish pastries recipe

Ingredients

• 500 g strong white bread flour
• 2 tbsp caster (superfine) sugar
• 10 g fast-action dried yeast
• 2 tsp salt
• 250 ml whole milk, plus extra for brushing
• 1 egg, lightly beaten
• 250 g unsalted butter
• 25 g unsalted butter
• 25 g plain (all-purpose) flour
• 250 ml whole milk
• 1 rounded tsp Dijon mustard
• 150 g mature Cheddar or Gruyère cheese, grated
• 1 egg, beaten with 1 tbsp whole milk, to glaze
• 18 thin asparagus spears, trimmed and halved
• 1 tbsp snipped chives
• 125 g thinly sliced ham
• 1 pinch each of salt and freshly ground black pepper