Preheat Oven to 400 degrees F (205 degrees C).
Bring a large pot of water to a boil. Once boiling, Salt (to taste) the water and add the Brussels Sprouts (1 pound). Cook until tender, about 4-8 minutes.
Drain the Brussel sprouts and transfer them to an oven-safe baking dish. Toss the sprouts in Butter (1 1/2 tablespoon), Salt (to taste), Ground Black Pepper (to taste), and Fresh Thyme (1 tablespoon) until coated.
Pour Heavy Cream (1/4 cup) into the baking dish and sprinkle Cheese (3/4 cup) and Breadcrumbs (1/2 cup) over all the sprouts.
Bake for 15-20 minutes or until the cheese starts to turn golden brown. Garnish with Fresh Parsley (to taste) if desired and serve hot!