Filling: 250 grams (8 3/4 ounces) barbequed Pork Material for Pastry I: 350 g (12 1/4 ounces or 3/4 pound) flour 100 g (3 1/2 ounces) lard 3 tbsp Sugar 1 egg 5 tbsp water Material for Pastry II: 200 g (7 ounces) flour 120 g (4.2 ounces or 1/4 pound) lard Seasoning: 2 tbsp Sugar 3 tbsp oyster sauce 1/2 tbsp sesame oil 1 tbsp dark soy sauce 1 tbsp light soy sauce 150 ml (just over 5 ounces) water Thickener: 2 tbsp water chestnut powder 4 tbsp water egg Sauce: 1 egg 4 tbsp water * * * *