01 - Cook chopped turkey bacon in a large pot over medium heat until crisp. Remove with slotted spoon and drain on paper towels.
02 - Melt butter in the same pot. Add leeks, onion, and garlic. Cook, stirring occasionally, until softened, approximately 5 minutes.
03 - Add diced potatoes to the pot and cook for 3 minutes, stirring gently to coat.
04 - Pour in chicken broth and water. Bring to a boil, then reduce heat and simmer until potatoes are tender, about 15 minutes.
05 - Using an immersion blender, puree soup until smooth and creamy. Alternatively, transfer carefully to countertop blender in batches.
06 - Stir in heavy cream, salt, pepper, and nutmeg. Heat gently for 3-4 minutes without allowing to boil.
07 - Ladle soup into bowls. Top with crispy turkey bacon pieces and fresh chives.