Heat the olive oil in a saucepan over medium heat.
Add the white onion, garlic, fresh ginger, mild curry powder and Japanese curry powder. Cook for 2–3 minutes until fragrant.
Add the grated carrot and cook for a further 2 minutes.
Pour in the vegetable stock, coconut milk and light soy sauce.
Simmer gently for 20 minutes until slightly reduced.
Season with sea salt and cracked black pepper to taste.
Blend until smooth if preferred.