For a smoother chowder, use an immersion blender to partially blend the soup before adding the cream mixture. Adjust the amount of cayenne pepper to suit your spice preference. A pinch goes a long way! Feel free to substitute other cheeses for the cheddar, such as Gruyere or Monterey Jack. If you don't have heavy cream, you can use half-and-half, but the chowder will be less rich. This chowder can be stored in the refrigerator for up to 3 days. Reheat gently on the stovetop or in the microwave.