Green Asparagus Soup With Celery Seed Sour Cream And Toasted Hazelnuts

Ingredients

• 2 pound fresh asparagus, trimmed of woody ends
• 3 spring onions, trimmed
• 1 cup fresh mint leaves
• 2 cup vegetable broth
• 1 cup heavy cream (optional)
• 1/2 teaspoon fine sea salt
• 1/4 teaspoon freshly ground white pepper
• 1 cup sour cream
• 1 teaspoon celery seed, lightly toasted
• sea salt and freshly ground black pepper, to taste
• 1 1/2 teaspoon lightly toasted hazelnuts, papery husks removed and coarsely chopped
• 2 teaspoon chopped fresh chives