3: Bring to a gentle boil and cook until the potatoes are soft. Discard the herbs and garlic, then drain, keeping the milk for another savoury recipe (bechamel sauce for example). Set aside the potatoes.
16: ...and brown in the oven for about 30 minutes.
Remarks
You can use another cheese of similar style (soft paste and full-flavoured) instead of the Époisses, but replacing it will lose the link to Burgundy. A bouquet garni will do fine instead of the bayleaf and sage.