Begin with pickling the eschalot. Place the eschalot in a small bowl. Toss in the vinegar and salt. Set aside, stirring occasionally, for 2 hours to pickle.
While the eschalot pickles, make the smoked potato mash. Place the potatoes in a steamer set over a saucepan of simmering water and steam for 40 minutes or until soft. Press the potatoes through a ricer or