Chicken noodle soup

Ingredients

• 900ml chicken or vegetable stock (or Miso soup mix)
• 1 boneless, skinless chicken breast (about 175g)
• 1 tsp chopped fresh ginger
• 1 garlic clove, finely chopped
• 50g rice or wheat noodles
• 2 tbsp sweetcorn, canned or frozen
• 2-3 mushrooms, thinly sliced
• 2 spring onions, shredded
• 2 tsp soy sauce, plus extra for serving
• mint or basil leaves and a little shredded chilli (optional), to serve