Roasted Garlic without shells chervil cookies

1 bulb of elephant garlic, or 2 large bulbs of American garlic, unpeeled olive oil fine sea salt and fresh ground black pepper 6 potatoes , peeled and cut in[...]

4 Tbsp. butter 2 Tbsp. Peeled and finely minced Vidalia onion or possibly sweet onion 2 x heads roasted garlic or possibly 8 or possibly 10 cloves fresh[...]