Well it's the best parsley sauce I've ever tasted (never made it before) and no different to plain flour. So, time itself will not unravel and ginge won't be fighting any marshmellow men. Not tonight anyway :-)
I infused milk with parsley stalks, peppercorns, onions. Left it to go cold and strained it. Made a white sauce using the infused milk and added chopped parsley, splash of cream and S&P.