Portobello Mushroom and Balsamic Sauce

|Portobello Mushroom and Balsamic Sauce||6 portobello mushrooms chopped1 tablespoon buttera dash of olive oilcoarse sea saltblack pepper freshly groundbalsamic vinegardouble cream|Melt butter and add a dash of olive oilAdd mushrooms and season with salt and pepperFry the mushrooms for a few minutesAdd balsamic vinegar and cook for about 5 minutesAdd cream and heat through|30.00 minutes|1|/boxmaster