Braised Pork with Potatoes

Name: Braised Pork with Potatoes (Tu Dou Shao Rou 土豆燒肉)
Cuisine: Chinese
Ingredients: 1 tbsp Shaoxing wine; 300 g floury potatoes; 3 tbsp cooking oil; 2 spring onions; 500 g boneless pork shoulder; 750 ml stock or water; 20 g ginger, peeled and sliced; 2½ tbsp Sichuan chilli bean paste