Mushroom & Tunworth cheese pies – Neal's Yard Dairy

Ingredients

• 1 good handful of porcini mushrooms
• 4 cloves of garlic
• 2 onions
• ½ a bunch of fresh thyme
• 300 g Maris Piper potatoes
• olive oil
• 1 large knob of butter
• 1 kg fresh mixed mushrooms
• 500 ml organic vegetable stock
• ½ a bunch of fresh flat-leaf parsley
• 120 g Tunworth cheese
• plain flour , for dusting
• 500 g all-butter puff pastry
• 1 large free-range egg
• 2 heaped teaspoons English mustard , plus extra to serve
• 1 tablespoon Worcestershire sauce