BEST EVER BEEF, GUINESS AND MUSHROOM PIE – Michael's SUPA IGA Korumburra

Ingredients

• 1 kg gravy or chuck steak (cut into 5cm cubes)
• 70 g plain flour
• 1 teaspoon ground black pepper
• 0.5 teaspoon Garlic powder
• 0.5 teaspoon onion powder
• 0.5 teaspoon salt
• 3 Tablespoons olive oil for browning the beef
• 1 large yellow onion (peeled thinly sliced)
• 2 cloves garlic (peeled and minced)
• 400 g button mushrooms (thinly sliced)
• 5 inch large carrots (peeled and cut into 2cmchunks)
• 2 cm stalks celery (cut into 1/2pieces)
• 460 g Guinness Stout
• 240 g low salt beef stock
• 2 dashes Worcestershire sauce
• 0.5 teaspoon mustard powder
• salt and pepper (to taste)
• 1 teaspoon corn flour
• 4 sprigs fresh parsley
• 2 sprigs fresh thyme
• 1 bay leaf
• 1 sprig fresh rosemary
• kitchen twine
• 1 packet Puff Pastry
• 1 medium egg (whisked well)