Steak and Guinness pie

Ingredients - 1kg diced beef (brisket and chuck work well) - 1 carrot, diced - 1 onion, diced - 1 medium celeriac, diced (use potato if you can’t find it) - 1 can Guinness - 2 tbsp flour - Salt and pepper to taste - 2 sprigs of rosemary, finely cut - One sheet of puff pastry - Egg for egg wash - 2 tbsp cornflour Method 1. In a large bowl, season your beef with salt and pepper and add your flour. 2. Toss the beef so it’s completely covered in flour. 3. In a large heavy-based pot over medium-high heat, seal off your diced beef. You are going to need to do this in batches as you don’t want to overcrowd the pan. 4. Once all of the beef is sealed off, remove from the pan and set aside. 5. Add your onions and let the pan come back to temperature. Then add your carrot and celeriac and season with salt. Cook this for 6-7 minutes and add your rosemary. 6. Add the beef back into the pan followed by your can of Guinness. Stir well and simmer f