Mix the water and Essence together. Rub the tenderloin with the mixture, cover with plastic wrap and marinate for at least 2 hours in the refrigerator.
Prepare the smoker.
Remove the beef from the refrigerator. Place the beef in the smoker and smoke for 10 to 12 minutes. Remove from the smoker and cool. Thinly slice the beef on the bias and set aside. In a large saute pan, over medium heat, heat the oil. Add the onions. Season with salt and pepper, and cook, stirring. Saute until the onions are caramelized, about 6 minutes.
Add the stock and garlic. Bring the mixture to a boil, reduce the heat to medium, and simmer for about 6 minutes.
Add the rice and simmer for 18 minutes, stirring constantly. Stir in the butter, cream, and cheese. Simmer for 2 minutes, stirring constantly. Fold in the beef and green onions. Remove from the heat. Spoon the risotto in the center of each shallow bowl. Garnish with parsley.
Combine all ingredients thoroughly.