Leave the Madlochjoch chairlift straight and follow the piste until you pass some short uphill section. Ideally take some speed before to avoid having to step uphill. You then see the the peak of the Stierlochkopf on the left, just before the piste rolls over. Turn left into an easily visible couloir. Depending on snow conditions the entrance can be a bit rocky, navigate them carefully. Follow the couloir down until it opens up and spits you out onto the meadows. Now cross the creek and stay skiers left of the couloir. Easy but still pleasant skiing from here, with nice features to play with. You reach Wasserfallweg which guides you through the woods all the way to the lift in Zug.

Instead of turning left before Stierlochkopf turn left after it, first following the ridge then turning right once it opens up. 
The creek bed of the Mahderbaechli is visible, stay left of it, there is plenty of options, including a small couloir on the far left. Beware of a rock band half way down which is fairly easy to navigate unless you go completely ballistic.

Variants

An alternative from Madlochjoch is to ski out skiers left staying as high as possible traversion over the next ridge while skiing still fairly high prior to turning right through Stierfall. From here ski all the way straight to the creek and follow the same way to Zug.