Ruvani Govender's Gourmet beef and potato curry pie

Name: Ruvani Govender's Gourmet beef and potato curry pie
Prep time: 20 min
Cook time: 3 h 5 min
Total time: 3 h 5 min
Yield: 8 portions
Ingredients: 80 g mature cheddar cheese; 200 g unsalted butter; 300 g plain flour; 1 tsp cumin seeds; 130 g chilled water; 1 tsp freshly squeezed lemon juice; ½ tsp sea salt; 180 g brown onion; 3 garlic cloves; 50 g vegetable oil; 10 - 12 fresh curry leaves; ½ cinnamon quill; 70 g tomato paste; 1 tbsp garam masala; 1 tbsp fennel powder; 1 tbsp ground coriander; 1 tbsp ground cumin; 1 tsp ground ginger; 1 tsp garlic powder; 1 - 1 ½ tbsp curry powder; 1 tbsp Kashmiri chilli powder; 1 tsp ground turmeric; 1 tsp sea salt; 750 g beef chuck steak; 300 g water; plain flour; 100 g frozen peas; 300 g potatoes; egg yolk