Mashed potatoes and porcini gravy Posted on January 18, 2016January 18, 2016 by SlowRunnerGirl Making mashed potatoes is so easy. Peel, cook in salt water then mix and mash with spices, melted margarine and almond milk. B12 is hidden in the gravy in form of nutrition yeast. Share this:TwitterFacebookGoogleLike this:Like Loading...