For a richer flavor, consider using roasted sweet potatoes instead of boiling them. Roasting brings out their natural sweetness and adds a delightful depth to the chowder. Adjust the amount of red pepper flakes to your liking. If you prefer a milder flavor, start with a pinch and add more as needed. Garnish with a swirl of cream, a sprinkle of fresh cilantro, or a few toasted pepitas for an extra touch of elegance.