Preheat your broiler with an oven rack 6 inches from the top.
Clean and shuck the oysters, leaving them in half shells.
Spread rock salt across a baking sheet, and balance the oyster shells on the rock salt.
Mix together the cheese, bread crumbs, parsley, salt, pepper, and garlic powder in a small bowl. Sprinkle the mixture evenly over each oyster.
Melt the butter in the microwave, and pour a small amount over each oyster.
Place the baking sheet on the top oven rack, and broil for 2 minutes or until cheese is melted and bread crumb mixture on top of the oysters is browned.
Recipe by The Geeky Hostess at https://geekyhostess.com/totally-shucked-from-break-an-egg-cookbook/