01 - In a large saucepan over medium heat, melt the butter. Add the chopped onion and sauté for 3–4 minutes until softened but not browned.
02 - Stir in the garlic and cook for 1 minute until fragrant.
03 - Add the green peas and vegetable stock. Bring to a gentle boil, then reduce the heat and simmer for 8–10 minutes, or until the peas are tender.
04 - Remove from heat and add the chopped mint leaves.
05 - Using a blender or immersion blender, purée the soup until smooth.
06 - Return the soup to the saucepan, stir in the cream, and gently reheat without boiling. Season with salt and pepper to taste.
07 - Ladle into bowls, swirl with additional cream, and garnish with extra mint leaves if desired.