Season the monkfish with the Essence and set aside.
In a medium, heavy stockpot, cook the bacon over medium-high heat until just crisp and the fat is rendered, about 4 minutes. Add the onions, celery and bell pepper, salt and cayenne, and cook until soft, about 3 minutes. Add the garlic, and cook, stirring, for 30 seconds. Add the potatoes and stock and simmer for 5 minutes. Add the corn and simmer for 5 minutes. Add the half-and-half, and bring to a boil. Add the monkfish, lower the heat, and simmer until the fish flakes, about 10 to 15 minutes.
Stir in the parsley and serve hot in soup bowls.
Yield: 6 servings