make to boil the potatoes with the peel, skin her and to crush her. prepare in a capacious bowl add the parmesan cheese, the fused butter, a pinch of salt and the yolks. mix well. On a sheet of oven paper prepare the bacon forming a regular rectangle (30 x 20 cms. around) on the whole surface excluding the edge of the paper of around 3 cms. Prepare I mix him of potatoes in regular way. abandon above the Malga and roll up the all well narrow, seal with a sheet of paper aluminum and batches for 10 minutes to 170 degrees. leave intiepidire, then cuts to slices, still prepare on every flat two warm slices, versed two abundant spoonfuls of seasoned and cut gialletti , decorated with a wafer of parmesan cheese. serve warm.