Roasted Garlic Mashed Potatoes
["2 to 4 heads garlic to taste", "1 Tbsp. olive oil", "4 lb. baking potatoes, peeled and cubed in 1-inch pieces", "1/2 c. butter or margarine", "1 c. milk", "1/2 tsp. salt", "1/2 tsp. pepper"]
["Place garlic on a square of aluminum foil and drizzle with oil. Wrap tightly. Bake at 425\u00b0 for 30 minutes. Remove from oven and set aside. This can be done ahead."]
["garlic", "olive oil", "baking potatoes", "butter", "milk", "salt", "pepper"]