Vibrant spring watercress soup

‘Watercress is nourishing, wholesome and full of antioxidants. In this recipe, the watercress is bold, and the soup is satisfying in its simplicity to make,’ says ‘The Calm Kitchen’ author, Lorna Salmon

SERVES 2

1 tbsp olive oil 1 medium potato, peeled and cubed 4 spring onions, finely chopped

600ml hot vegetable stock 80-100g fresh watercress

Salt and freshly ground black pepper