Ingredients
Instructions
- Preheat oven to 350 degrees F (175 degrees C).
- Put garlic in small ovenproof bowl, and drizzle with olive oil.
- Roast for 30 minutes, until very soft.
- Cool, peel, and reserve oil.
- Cook potatoes and yams in a large pot of salted water until tender, about 20 to 30 minutes.
- Drain, reserving 1 cup liquid.
- Place potatoes in a mixing bowl.
- Add milk, butter or margarine, rosemary, garlic, and reserved olive oil.
- Mash until smooth as desired, adding reserved cooking liquid as needed.
- Mix in 1/4 cup cheese.
- Salt and pepper to taste.
- Transfer to a buttered or oiled 8 x 8 x 2 inch baking dish.
- Sprinkle with remaining cheese.
- Bake for 45 minutes, until heated through and golden on top.