Shrimp Stock ? Recipe

Ingredients

• 1 teaspoon light oil without strong flavors like vegetable
• 1 to 2 pounds shrimp shells, rinsed
• 1 medium yellow onion cut in half, with the peel still on
• 1 to 2 carrots, roughly chopped
• 2 celery stalks, roughly chopped
• 2 to 3 cloves fresh garlic, smashed and peeled
• a few springs fresh parsley
• 2 bay leaves
• 1/2 teaspoon whole coriander seeds
• 1/4 teaspoon black peppercorns
• 6 cups water