Recipe video above. Golden on the outside and meltingly tender inside (hence the name!), infused with flavour from roasting in a buttery stock. Lovely, elegant way to cook potatoes, very restaurant-y! If you're in a hurry, don't worrying about shaping into cylinders. Just cut thick slabs of potato (whatever shape they happen to be!) and cook per the recipe. Or, just use a potato peeler to shape as best you can. It will still taste just as good!