Cold potato-leek soup (vichyssoise) – Augusta Health

Ingredients

• 4 leeks (white bottoms with a bit of green)
• 1 medium onion
• 1 tablespoon olive oil
• 4 medium potatoes, peeled and finely sliced
• 4 cups unsalted chicken broth
• 1/4 teaspoon ground mace
• 2 cups evaporated skim milk, chilled
• 6 tablespoons chopped chives
• Ground black pepper, to taste