4 tablespoons garlic powder
3 tablespoons minced fresh parsley
2 tablespoons sugar
1 teaspoon seafood seasoning, such as Old Bay
1 clove garlic, minced
1 teaspoon salt
2 sticks (1 cup) butter, softened
8 slices bread
4 slices American cheese
4 slices fresh mozzarella
4 slices smoked Gouda
1 tablespoon olive oil