step 1
Divide the spring onion into 3 equal parts. Slice 1 part horizontally for garnish and thinly shred the over 2 parts for cooking.
step 2
Heat the olive oil in a saucepan, add the finely shredded spring onion and fry for 2-3 minutes until it turns slightly golden in colour.
step 3
Pour in the creamed sweetcorn and then refill the tin to the top with water and pour that in as well. Cook on high heat until the soup is boiling.
step 4
Add the chopped oyster mushrooms (if using), season with salt and bouillon and stir gently.
step 5
Reduce the heat to medium, cover with the lid and simmer for 5 minutes.
step 6
Pour the soup into two serving bowls equally, garnish with the rest of spring onion and coriander. This soup is best served hot.