Red Wine Vinegar Mushroom & Onion

Sometimes stir-fry gets monotonous. Chop, oil, fry, stir, sprinkle with salt.¬†Where’s the fun in that? Trick question. There is no fun. But one rainy day found me standing in front of the vinegar section in the supermarket, wondering if a new type of vinegar was the missing piece in my life. Balsamic vinegar was too…