01 -
Cut the top 1/4 inch off of the garlic head. Wrap it in foil and drizzle olive oil over the garlic. Close the foil around the garlic and roast in the oven at 375°F for about an hour. The garlic will be very soft and golden when done. When ready to use, squeeze the garlic cloves out of the skin.
02 -
Place the potatoes in a large pot or Dutch oven and cover with cold water. Add 1 tsp salt and bring to a boil. Simmer for 15 minutes or until fork-tender.
03 -
Drain the potatoes and return to the pot along with the roasted garlic cloves. Gently warm the half and half and butter until the butter is melted. Add to the pot with the potatoes and garlic, then season with salt and pepper. Mash until the mixture reaches a creamy consistency with some lumps.
04 -
Garnish the mashed potatoes with fresh herbs and additional butter, then serve.