01 - Preheat oven to 400°F. Place garlic cloves on foil, drizzle with olive oil, wrap tightly, and roast for 20 to 25 minutes until soft and golden.
02 - Place potatoes in a large pot, cover with cold salted water, bring to a boil, reduce heat, and simmer for 15 to 20 minutes until fork-tender.
03 - Drain potatoes thoroughly and return to pot. Add roasted garlic, butter, and warm milk heated gently before mixing.
04 - Mash potatoes and garlic together until smooth and creamy or to preferred texture.
05 - Stir in chopped chives, salt, and pepper. Adjust seasoning to taste and garnish with extra chives if desired.