1 red chilli, seeds removed, finely chopped
2 garlic cloves, finely chopped
1 tsp finely grated root ginger
1 tsp lemon juice (optional)
1 stem lemongrass, bruised
2 banana shallots, chopped
1 small sweet potato (about 175g/6oz), peeled and cut into 1cm/陆in cubes
150ml/5fl oz chicken stock
200ml/7fl oz coconut cream
2 tsp Thai green curry paste
150驳/5陆辞锄 plain flour
black pepper
1 tsp cornflour, mixed with a splash of water
splash of Thai fish sauce
pinch fine salt
2 tbsp vegetable oil
40g/1陆oz unsalted butter, chilled, cut into roughly 1cm/陆in cubes
1 free-range egg, beaten, to glaze
35驳/1录辞锄 lard, chilled, cut into roughly 1cm/陆in cubes
2 skinless, boneless chicken breasts (about 300g/10陆oz)
2 skinless, boneless chicken thighs (about 150驳/5陆辞锄)
2 lime leaves, torn