| preheat oven 220c | cook 25min until golden | |||||
| 700.0 g of puff pastry | roll pastry into 30x25.5cm and 2.5cm bigger sheets | spread on smaller sheet leave 1cm border | cover leaving 1cm border | brush edges | place pastry sheets on top of each other and pinch | |
| 2.0 tbsp of mustard | ||||||
| 700.0 g of wafer ham | sliced | |||||
| 350.0 g of gruyere or cheddar | grate | |||||
| 2.0 milk | ||||||