Steak And Stilton Pie With Caramelised Onion Pastry

Ingredients

• 800 g braising steak (chuck or shin, cut into bite-sized chunks)
• 2 tbsp Vegetable Oil
• 2 cloves garlic (minced)
• 1 tbsp tomato purée
• 200 ml red wine (or dark ale)
• 400 ml beef stock (use a good quality)
• 1 tsp mustard (english)
• 1 tsp Worcestershire Sauce
• 2 sprigs thyme
• 75 g stilton cheese
• salt and pepper (to taste)
• 2 onions (thinly sliced)
• 300 g flour (plain)
• 75 g butter (cold)
• 50 g lard (cold, cubed)
• salt (a pinch)
• 3 tbsp water (cold)
• 1 egg (beaten, for the glazing)