Welsh Lamb and Sweet Potato Curry - United Kingdom

Ingredients

• 500g PGI Welsh Lamb, chump or leg steaks cut into cubes
• 1 tbsp oil
• 1 onion, diced
• 2 sticks celery, sliced
• 1 red pepper, diced
• 2 cloves garlic, crushed
• 1 red chilli, seeds removed and finely sliced (optional)
• ½ inch fresh ginger, finely chopped
• 3 tsp garam masala powder
• 2 tsp turmeric powder
• 400ml can of reduced fat coconut milk
• 1 tbsp tomato purée
• 150ml veg or chicken stock
• 2 large sweet potato, diced
• Seasoning
• 1 lime, rind and juice
• Handful of fresh coriander