Bourbon & honey-glazed brisket with soured cream & chive mash

Name: Bourbon & honey-glazed brisket with soured cream & chive mash
Prep time: 15 min
Cook time: 8 h
Total time: 8 h 15 min
Cuisine: American
Ingredients: 3 tbsp vegetable oil; 2-2½ kg piece beef brisket , rolled and tied (ask your butcher to do this for you); 1 tbsp smoked paprika; 1 tbsp English mustard powder; 2 tsp dried onion powder; 1 tsp ground cinnamon; pinch dried ground cloves; 6 tbsp light brown soft sugar; 100g honey; 50ml bourbon whiskey , plus 2 tbsp; 2 red onions , sliced; 4 bay leaves; 4-6 small carrots , peeled and halved or quartered lengthways or 300g Chantenay carrots; 100ml red wine vinegar; 4-6 large baking potatoes , unpeeled; 250g soured cream; 75g butter , plus extra to serve; splash of milk; small pack chives , chopped