Best-ever butter chicken pie recipe

Name: Best-ever butter chicken pie recipe
Prep time: 25 min
Cook time: 1 h 5 min
Total time: 1 h 30 min
Cuisine: American
Ingredients: 1 tablespoon vegetable oil; 4 chicken thigh fillets, trimmed, cut into 3cm pieces; 1 brown onion, halved, sliced; 3 garlic cloves, crushed; 3cm piece fresh ginger, finely grated; 1 tablespoon ground cumin; 2 teaspoons ground coriander; 1 teaspoon ground paprika; 1/2 teaspoon ground turmeric; 400g can diced tomatoes; 400g butternut pumpkin, peeled, cut into 3cm pieces; 300g white potatoes, peeled, cut into 2cm pieces; 1/4 cup thickened cream; 1/2 cup frozen peas; 2 tablespoons roughly chopped fresh coriander leaves; 2 sheets frozen puff pastry, partially thawed; 1 egg, lightly beaten; Salad leaves, to serve