In a large saucepan over medium-low heat, melt the butter. Stir in garlic and cook for 1 minute. Sprinkle flour over the top and whisk to incorporate. Then whisk in salt, Worcestershire sauce, and hot pepper sauce. Cook for 1 minute, whisking gently all the while.

Whisk in reserved oyster juice. Then slowly add milk, whisking constantly to incorporate. Cook over low to medium-low heat, stirring regularly, until mixture is steaming and bubbles just start to appear around the edge of the saucepan. Do not let mixture come to a boil. Turn heat down to low, and let cook for 10 minutes.

Add oysters and cook for 2 more minutes, or until oysters start to curl. Taste test and add a bit more salt if you like. Black pepper and fresh chopped parsley are optional.