Liver and bacon hotpot | Reader's Digest Asia

Ingredients

• 700 g potatoes, thinly sliced
• 2 tablespoons sunflower oil
• 400 g lamb's liver, sliced
• 2 slices bacon, rind removed, finely chopped
• 2 onions, finely chopped
• 200 g swede, diced
• 200 g carrots, diced
• 2 tablespoons plain flour
• 2 cups (500 ml) chicken stock, preferably homemade
• 1 tablespoon chopped fresh sage or ½ teaspoon dried sage
• 3 teaspoons wholegrain mustard
• salt
• pepper
• 1 tablespoon (20 g) butter