Yup the wine reduced to 30ml I tested with my measuring scoop! Maybe i must try different wine next time, tbh I'm not biggest fan of wine in general! It did taste good don't get me wrong but I found the wine just abit much, cheese flavour was good, just didn't like the under current of the wine! Would adding some shrooms work?
Sure they would. Just cook them beforehand on a very high heat to get some browning going on them. Also, salt them a little when frying but be careful because the sauce is full of flavour as it is. You don't want to overpower them, but a little salt on the mushrooms when you cook them high and fast does help draw out a little extra moisture, which you won't want in your sauce. You could always substitute the chicken stock for mushroom stock made from steeping dried mushrooms in water for an hour. Personally I'd mix half and half chicken and mushrooms stock...