Bountiful Twice-Baked Potatoes

Heat oven to 350°F. Pierce baking potatoes and yams several times with fork to allow steam to escape. Bake 1 1/4 to 1 1/2 hours or until tender.

Cut baking potatoes lengthwise in half; scoop out insides, leaving a thin shell. Mash potatoes in medium bowl until no lumps remain. Add small amounts of milk, beating after each addition. (Amount of milk needed to make potatoes smooth and fluffy depends on kind of potatoes.) Add 1/3 cup butter, the salt and pepper; beat vigorously until potatoes are light and fluffy. Fill half of potato shells with mashed potatoes.

Peel yams; mash in medium bowl. Stir in maple syrup and 1/3 cup butter. Fill remaining potato shells with mashed yams.

Increase oven temperature to 400°F if serving immediately. Bake on ungreased cookie sheet about 20 minutes or until hot. (If making recipe ahead of time, see To Refrigerate or To Freeze below.)

To Refrigerate: Tightly cover and refrigerate filled potatoes no longer than 48 hours. About 40 minutes before serving, heat oven to 400°F. Uncover and bake on ungreased cookie sheet about 30 minutes or until hot.

To Freeze: Place filled potatoes in airtight freezer container; label container. Freeze no longer than 2 months. About 50 minutes before serving, heat oven to 400°F. Bake uncovered on ungreased cookie sheet about 40 minutes or until hot.