Heat again the potatoe purée on a
warm hob and stir it with a wooden spatula in order to dry it during 2 to 3 minutes, then add the
butter in small cubes, then the boiling and seasoned
milk so that you get the right consistency. Fine tune the seasoning, then add, out of the hob, the
truffle cut in thin sticks ('julienne' cut) and keep it aside.