1) Peeled And washed potatoes, cut them into very thin slices with a mandolin and, as they are ready, put them on soak in a bowl full of water. Drain them, transfer them in a saucepan with more cold water and bring to a boil.

2) United a pinch of salt and cook the potatoes for 2 minutes. Drain them gently and roll them out to cool on baking paper.

3) Butter 6 molds of 7 cm in diameter. Chop in the mixer the sage leaves with the Parmesan cheese. Fill the molds alternating layers of potatoes and parmesan with sage.

4) Pour the milk in the molds e bake at 180 ° for about 30 minutes. Leave cool for 5 minutes, remove the flans from the molds e served.