Briazz Potato Stackzz

Preparation

1 Pre-heat oven to 350°F.
2 Butter a 2″ deep hotel pan (12″x 20″). Slice potatoes 1/8″ – 1/4″ thick. Place in large pot, cover with cold water, bring to boil and simmer until barely tender, 7 – 10 minutes.
3 Alternately, blanch by steaming until barely tender. Air-cool potatoes spread out on sheet pan, 10 – 15 minutes.
4 Meanwhile, sweat leeks in butter until softened, about 7 minutes. Have mustard sauce ready.
5 To assemble gratin, layer 1/4 of potatoes, 1/4 of sauce, 1/4 of leeks, 1/4 of cheese in hotel pan.
6 Repeat this process to create 4 layers. Cover tightly with foil. Bake for 35 – 45 minutes to an internal temperature of 175°F.

Source: Idaho Potato Commission