Roasted Garlic Mashed Potatoes

Name: Roasted Garlic Mashed Potatoes
Ingredients: 1 garlic bulb; 5-6 yukon potatoes (peeled and fourthed); 6 tbsp butter; 1 cup cream (half and half, milk, or heavy); thyme (a few sprigs); kosher salt (big pinch); pepper (big pinch); chives (fresh, chopped)