Roasted garlic and mashed rutabaga bump up the flavour of classic mashed potatoes.
Roasted Garlic Mixture
Preheat the oven to 350°F.
Slice the heads of garlic in half crosswise and drizzle with the oil. Wrap the garlic in foil and roast until creamy, about 1 hour. When cool enough to handle, squeeze the cloves into a small bowl and mash lightly with a fork.
Bring a medium pot of salted water to a boil. Add the rutabaga and cook until tender, about 25 minutes. Drain thoroughly.
Put the potatoes in a medium pot, cover with cold water and add 2 tablespoons salt. Bring just to a simmer and simmer the potatoes, uncovered, until tender, about 45 minutes. Drain.
Peel the potatoes and return them to the pot (if desired, pass them through a ricer or food mill after peeling). Add the rutabaga. Mash the potatoes and rutabaga with the milk and butter using a fork or potato masher. Stir in the roasted garlic and 2 teaspoons salt; season with pepper.