Sweet potato, coconut & lemongrass soup with coriander sambal recipe | Good Food

Ingredients

• 2 tbsp groundnut oil
• 4 spring onions sliced
• 2 large garlic cloves sliced
• 2 lemongrass stalks outer leaves removed and stalk finely chopped
• finger-sized piece ginger sliced
• 900g sweet potatoes peeled and chopped into small pieces
• 215ml coconut milk
• 285ml vegetable stock (we used Bouillon)
• 1 green chilli deseeded
• 1 tsp caster sugar
• 2 limes juiced
• 1 small pack coriander