A low-carb cauliflower leek soup that can be as healthy or unhealthy as you'd like depending on your toppings!
Add the leeks, cauliflower, garlic, chicken broth, and cinnamon to the Instant Pot. Season with salt and black pepper to taste.
Add the Instant Pot lid and lock into place. Switch the vent to “Sealing” position and set the “Manual” setting on high before adjusting the cook time to 9 minutes. After a brief pause, the Instant Pot will automatically start to build pressure.
When that is finished cooking, do a quick release (QR) to allow the pressure to escape. Unlock and carefully remove lid. Add the 12 ounces of cheese (sharp cheddar, ricotta, and cream cheese) and mix until the cheese has fully melted.
Blend with an immersion blender until the cauliflower leek soup is smooth.
Serve hot or chilled with optional toppings.