Pipi Soup (Nz Clam Chowder)

INGREDIENTS

• 20 -25 surf clams, rinsed in cold water
• 1 medium white onion, diced
• 2 garlic cloves, finely chopped
• 1 tablespoon of finely chopped flat leaf parsley
• 1 tablespoon of finely chopped sweet basil
• 4 -5 young potatoes, diced
• 1/4 sea salt
• 1 tablespoon flour, dissolved in 2 Tbsp of cold water
• 1 tablespoon sherry wine
• 700 ml milk
• 1 tablespoon butter