Parmesan & leek puff pastry pinwheels are a savory snack or appetizer featuring tender leeks and garlic cooked with butter, seasoned, and then spread over a sheet of puff pastry with cream cheese and parmesan. The pastry is rolled, chilled, sliced into pinwheels, brushed with melted butter and more parmesan, then baked until golden brown. Perfect for serving with fresh parsley or thyme.