Canal House’s Carrot Soup

Ingredients

• 4 tablespoons butter
• 1 yellow onion, peeled and chopped
• Salt and freshly ground black pepper
• 1 pound carrots, peeled and sliced
• 1 large russet potato, peeled and diced
• Wide strips of peel from ½ lemon
• 2 bay leaves
• 6 cups chicken stock