Start by bringing 3 medium peeled potatoes to the boil with 1 t of salt. Turn down the heat to a vibrant simmer and leave to cook for 20 minutes, or until you can poke through the potato with a fork with ease.
Now mix together 4 T of soy sauce, 1 T sugar, 2 T honey, 1 cloves minced garlic, 1 T red wine, 1 t black pepper and 2 T sesame oil in a container big enough to briefly marinade your mushrooms in (I used an oven dish) and place in the mushrooms. Tossing every so often to coat everything evenly.
Stand around for a few minutes to roughly time your mushrooms to be ready at the same time as your potatoes. 5 to 10 minutes or so.
When your potatoes have about 10 minutes to go, heat a large frying pan over high heat and add 1 T neutral oil before tossing the mushrooms and marinade into the pan. Toss and cook until the mushrooms have caramelized and most of the liquids have evaporated.Be sure to stay with the pan at this step, the sugars and garlic can turn really burnt and bitter if you don't take it off the heat in time. With the mushrooms taken off the heat and the potatoes now cooked. Add 1 T sugar, 3 T cream, 2 T milk and 1 T grated ginger to the potatoes and mash to your desired consistency. I like my mash chunky on some days and smooth on others, so you do you.
Plate the mash and then top with the mushrooms before sprinkling with 2 T of spring onion (or chives) and serve with a nice Bourgogne Chardonnay.