Ham and cheese cruffins

Pastry

• 120 g water
• 1 ½ tsp dried instant yeast
• 30 g sugar
• 280 g baker's flour, plus extra to dust
• 50 g unsalted butter
• ¼ tsp sea salt

Assembly

• 250 g unsalted butter, cut into pieces
• 50 g plain flour, plus extra to dust
• 150 g cheddar cheese, cut into pieces (3 cm)
• 120 g ham of choice, cut into pieces